Options:
a lake a prairie the land an organic farmer uses to raise crops to feed his dairy cattle a large island in the tropics that has snowcapped mountainsAnswer:
a large island in the tropics that has snowcapped mountains
Explanation:
The land a farmer uses is likely to be quite highly regulated in order to ensure that his dairy cattle thrive. That means the growth of certain plants will be controlled, and this will likely impact diversity.
A lake and a prairie could have diverse and balanced ecosystems. However, due to the limited habitat are likely only to harbour specific organisms. E.g. the lake will only harbor organisms that thrive in water environments.
A large island will, first of all, have a lot of space to support diversity. It is in the tropics, meaning it will have species suited to a hot and wet environment. Since it is an island, there will also be the involvement of sea/ocean dwelling creatures. However, there is also mountainous habitat that has snow, meaning it is high up and cold. This provides a habitat for even more species adapted to different environments.
Therefore, the island will be the most diverse.
Answer:
a large island in the tropics that has snow-capped mountains
Explanation:
A tropical land area/ecosystem will by far have the greatest diversity in the ecosystem.
Biodiversity is the variation of life forms in an area. This is usually a function of the number of lives an area can support.
The tropics have abundant energy and the net production is very high. Since there is availability of food for most organisms, different life form will find it easy to thrive in such an area. Tropical regions of the world are the most biodiverse in the world with a rich fauna and floral abundance.which plane velocity was greatest? Yeagers Bell x-1, The Concorde, SR71 blackbird, none they all traveled at the same speed.
Answer:
The SR-71 Blackbird.
Explanation:
The Lockheed SR-71 "Blackbird" was an American strategic reconnaissance aircraft that traveled at over mach 3, or 3 times the speed of sound. The Concorde was a French passenger jet with a top speed of just over mach 2. The Bell X-1 was the first supersonic test plane and had to be dropped from a larger plane to reach altitude.
The plane velocity of SR71 blackbird was the greatest. The correct option is C.
What is velocity?The directional speed of an item in motion, as measured by a specific unit of time and observed from a certain point of reference, is what is referred to as velocity.
Velocity is the pace and direction of an object's movement, whereas speed is the time rate at which an object is travelling along a path. In other words, velocity is a vector, whereas speed is a scalar value.
The SR 71 Blackbird is the fastest piloted aircraft. (Some unmanned vehicles have moved more quickly.) It has moved at a 936 m/s speed. This is Mach 3, or roughly three times the speed of sound.
Thus, the correct option is C.
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How can you (and scientists) tell that a model is good? What kinds of tests can you run to assess the validity of a climate change model?
Model validity can be assessed by analyzing past and present data, such as glacier dimensions, water levels, tree rings, and greenhouse gas levels. Scientific research aiming to develop a deeper understanding of these factors and carbon dioxide concentrations in the atmosphere can also help improve model accuracy.
Explanation:A good model, whether physical or computer-based, is built around a hypothesis and can effectively test this hypothesis. The validity of these models, such as those used in climate change considerations, can be assessed through a variety of tests.
For example, scientists can predict the rise in Earth's temperature by analyzing previous and current data such as the dimensions and locations of glaciers, as well as the water levels in lakes, rivers, and oceans. Analysis of annual tree rings and greenhouse gas levels in the current atmosphere are also methods employed to validate climate change models.
Additionally, scientific questions that lead to an improved understanding of temperature acclimation or advancements in modeling atmospheric carbon dioxide concentrations can further enhance the accuracy of these models. This combination of past data, current measurements, and ongoing scientific inquiry helps ensure that models provide a realistic representation of our planet's changing climate.
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Combinatorial control of gene expression a. involves every gene using a different combination of transcriptional regulators for its proper expression. b. is seen only when genes are arranged in operons. c. involves only the use of gene activators that together regulate genes appropriately. d. involves groups of transcription regulators working together to determine the expression of a gene.
Answer:
The true statement will be - D
It is a involvement of groups of transcriptional regulators which work together to determine the expression of a gene.
Explanation:
Combinatorial gene regulation is a mechanism by which small numbers or groups of transcriptional factors or regulators can control the expression of a much larger gene with temporal and spatial patterns.
The process by which a cell regulates the conversion of DNA to RNA to increase gene activity is known as Transcriptional regulation. A single gene can be regulated by altering the RNA which is transcribed.
The gene control allows the cell to respond to a variety of intracellular and extracellular signals.
Combinatorial control of gene expression involves groups of transcription regulators working collectively to regulate the expression of a gene. Every gene can potentially use a unique combination of these regulators for its adequate expression. It's not confined to operons or with the use of only gene activators.
Explanation:The combinatorial control of gene expression refers to a mode of gene regulation where groups of transcription regulators work collectively to determine the expression of a gene. This principle infers that every gene can potentially use a unique combination of transcriptional regulators for its appropriate expression. However, it's not exclusive to genes arranged in operons or involving only gene activators. This control is a complex process which involves both activators and repressors that bind to specific DNA sequences, thereby increasing or decreasing the transcription of genes.
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Nylon-eating bacteria were discovered growing in ponds containing waste products from a nylon manufacturer. Further study revealed that the enzymes the bacteria used to digest the waste products were different from enzymes produced by other bacteria. Also, the enzymes were not effective on any material other than the nylon waste products. Nylon is an artificial product that was invented in 1935. What does this information MOST likely suggest about the development of the bacteria?
Select one:
a. Bacteria that can digest nylon have a reproductive advantage in the pond.
b. The availability of food forced a change in the living things in the area.
c. Bacteria can create enzymes to digest anything in their environment.
d. Natural selection eliminated the other bacteria in the pond ecosystem.
Answer:
d. Natural selection eliminated the other bacteria in the pond ecosystem.
Explanation:
Natural selection is a type of selection in which nature selects the most suited species or organisms for a particular environment. In this pond environment, only nylon eating bacteria survive due to the availability of food in the form of nylon while all other bacteria die due to the unavailability of food or they are unable to consume nylon in the pond. So that's why nylon eating bacteria survived and other bacteria removed from the pond.
True or false in terms of symmetry, the human body is radically symmetrical
Answer:
False
Explanation:
Humans and most animals exhibit "bilateral symmetry"
What type of cell would meosis occur?
Answer:takes place in the cell nuclei of eukaryotic cells that are related to reproduction. Cells not associated with reproduction are called somatic cells, and cells associated with reproduction are known as gamete cells.
Explanation:
it's true
In which process does RNA polymerase help synthesize mRNA from a DNA template?
RNA polymerase synthesizes mRNA from a DNA template in a process called transcription, which takes place in several phases including initiation, elongation, and termination.
The process in which RNA polymerase helps synthesize mRNA from a DNA template is known as transcription. This process begins with the binding of RNA polymerase to a DNA promoter sequence. The DNA unwinds to form a transcription bubble, where the enzyme reads the template strand of the DNA from 3' to 5', while synthesizing the complementary mRNA strand in the 5' to 3' direction. RNA polymerase uses ribonucleotide triphosphates (rNTPs) to add new nucleotides to the growing RNA chain, and divalent metal ions like Mg2+ are necessary for the catalysis of this reaction. Transcription continues with the elongation phase where RNA polymerase keeps adding nucleotides to the 3' end of the growing strand until it reaches a terminator sequence that signals the end of transcription. The resulting mRNA then undergoes further processing and eventually exits the nucleus to be translated into a protein by ribosomes in the cytoplasm.
According to the text, which statement best describes stem cells? A Stem cells hold genes that send messages to the brains of babies. B Stem cells can change into specific cells and then turn back into stem cells again. C Stem cells are undifferentiated cells that can become any other kind of cell. D Stem cells first develop in adults and are passed on to their offspring.
Stem cells are undifferentiated cells that have the potential to develop into different cell types and are important in the body's development and repair.
Explanation:According to the text, stem cells are undifferentiated cells that can become any other kind of cell. Stem cells have the ability to differentiate into various cell types and can be found in both embryos and adult tissue. They play a crucial role in the development and repair of the body by replenishing damaged or lost cells. Unlike other cells, stem cells can self-renew and maintain their undifferentiated state, making them valuable resources for medical research and potential therapies.
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The different from of a gene for a given trait are called
Their called Alleles
Answer:
Genes come in different varieties, called alleles. Somatic cells contain two alleles for every gene, with one allele provided by each parent of an organism.
Explanation:
occurs when nearby objects obstruct the solar radiation to the PV module.
Answer:
dem points forgive me
Explanation:
runj u jik mii
ATP is a source of free energy that drives unfavorable reactions. Which of the processes are coupled to the dephosphorylation of ATP?
A. the exergonic hydrolysis of creatine phosphate
B. reversible isomerization of glucose‑6‑phosphate to fructose‑6‑phosphate during glucose catabolism
C. de novo (from scratch) anabolism of nucleotides
D. myosin action during muscle contraction
Answer:
Explanation:
ATP is a source of free energy that drives unfavorable reactions. Which of the processes are coupled to the dephosphorylation of ATP?
C. de novo (from scratch) anabolism of nucleotides
D. myosin action during muscle contraction
The following sequence of nucleotides is found in a single-stranded DNA template: ATTGCCACGTAGCTATCGTACG Assume that RNA polymerase proceeds along this template from left to right. • Which end of the DNA template is 5’ and which end is 3’? • Give the sequence and identify the 5’ and 3’ ends of the RNA copied from this template.
Answer:
1) The right end is the 5' region and the left end is the 3' region
2) 5'-UAACGGUGCAUCGAUAGCAUGC-3
How are the two life cycles different between humans and plants regarding any dominant stages, internalization, and how fertilization happens?
In human life cycles, the dominant stage is the diploid and fertilization is internal. However, plant life cycles commonly involve alternation of generations with a dominant diploid stage and external fertilization that involves pollinators.
Explanation:The life cycles of humans and plants show significant differences. In humans, the dominant stage is the diploid, which is the stage after fertilization and encompasses most of a human's life. Human fertilization is internal and involves the fusion of a male sperm and a female egg within a woman's body. It becomes a zygote, which evolves into a multicellular organism through cell division.
In plants, particularly among angiosperms, the life cycle involves alternation of generations. The diploid (2n) sporophyte is usually the dominant and noticeable stage. The sporophyte develops spores through meiosis which germinate into a gametophyte (n). The gametophyte may produce eggs in archegonia and sperm in antheridia, and fertilization results in a zygote that develops into a sporophyte. Notably, the fertilization in plants is external, with pollen containing sperm cells transferring to eggs by wind, insects or other pollinators.
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Which image represents cytokinesis in an animal cell
Answer:the third image represents
Explanation:
Cytokines is the third image
Plz Help if anyone know this I’m really struggling especially because this question is just 50 points it’s self.
Answer: The inner planets are Mercury, Venus, Earth, and Mars
Explanation:
The inner planets are also called the terrestrial planets by astrologers. This is because they have a distinguished characteristics which make them.distinct from the outer plantets. They are small Rocky planets and they are made up of silicate , iron and nickel metal.
These planets are arranged based on their distance from the sun i.e from the closet to the sun to there farthest.
They are Mercury, Venus, Earth and Mars.
Part A The Cell Theory states that:
Choose all that apply, and keep in mind that just because a statement is accurate does not necessarily make it a correct response to a question being asked. Choose all that apply, and keep in mind that just because a statement is accurate does not necessarily make it a correct response to a question being asked.
A. on early earth, the surface to volume ratio of the cell was much larger because the percent oxygen in the air was much less
B. all living things are composed of cells.
C. viruses are considered living things, but only in some cases
D. cells have more DNA in them in G2 than in G1
E. all cells arise from preexisting cells
F. the cell is the fundamental unit of life.
G. prions are living things
Answer:
The following statements are true and are relevant to The Cell Theory:
B. all living things are composed of cells.
E. all cells arise from preexisting cells
F. the cell is the fundamental unit of life.
Explanation:
Although lower percentage of atmospheric oxygen in earlier times (220 million years ago) is true, it is not possible that the ratio was "much larger" than what it is today.
Option C is correct but not pertinent to the cell theory. Viruses are considered as living things once they are inside a host.
G1 and G2 are growth phases and have the same amount of DNA in them. It is during the mitotic phase that the DNA is increased. Hence, option D is incorrect.
Option G is false as well. Prions are not considered as living things, they are just proteins that can cause infections.
Hope that answers the question, have a great day!
what happens in anaphase 2
Answer:
During anaphase II, the third step of meiosis II, the sister chromatids of each chromosome separate and move toward opposite poles.
Explanation:
What would be the most likely effect on the transcription of the trp structural genes for the mutation scenarios provided? mutation that prevents ribosome binding to the mRNA 5' UTR mutation that changes region 1 tryptophan codons into alanine codons mutation that creates a stop codon in region 1 of mRNA 5' UTR deletions in region 2 of the mRNA 5' UTR deletions in region 3 of the mRNA 5' UTR deletions in region 4 of the mRNA 5' UTR deletion of the string of adenine after region 4 of the mRNA 5' UTR
Answer:
I've responded to each scenario individually, please see below:
1. mutation that prevents ribosome binding to the mRNA
No transcription occurs
2. 5' UTR mutation that changes region 1 tryptophan codons into alanine codons
Transcription when alanine is low
3. mutation that creates a stop codon in region 1 of mRNA 5' UTR
Transcription occurs, a truncated protein will be made during translation
4. deletions in region 2 of the mRNA 5' UTR
Transcription occurs, region 1 and 2 might get paired together
5. deletions in region 3 of the mRNA 5' UTR
Transcription occurs, region 3 and 4 could combine to form a hairpin loop structure
6. deletions in region 4 of the mRNA 5' UTR
Transcription occurs, region 3 and 4 could combine to form a hairpin loop structure
7. deletion of the string of adenine after region 4 of the mRNA 5' UTR
Transcription occurs, however, it will not be as stable a molecule because of losing its polyA tail
Hope that answers the question, have a great day!
Answer:
Explanation:
Trp structural genes are the genes that make up the trp operon. This operon encodes genes that leads to the production of enzymes that aids in the synthesis of tryptophan. the operon is made up of five structural gens, trp A, B, C, D, E. Attenuation is a mechanism that causes premature termination of transcription of the trp operon when tryptophan is abundant.
Mutation that prevents ribosome binding to the mRNA: Transcription of the trp structural genes will not occur. there will be no gene expression will occur.
5' UTR mutation that changes region 1 tryptophan codons into alanine codons: If alanine codons have replaced tryptophan codons, then under conditions of low alanine, the stalling of the ribosome will not occur. The attenuator will form, stopping transcription.
mutation that creates a stop codon in region 1 of mRNA: this will cause the ribosomes to stall there and transcription will not proceed because the attenuator can be formed.
5' UTR deletions in region 2 of the mRNA: If region 2 of the mRNA 5' UTR is deleted, the antiterminator cannot be formed thus allowing formation of the attenuator and transcription stops.
Deletions in region 3 of the mRNA 5'UTR : Attenuation will not occur, and transcription of the trp structural genes will proceed.
Deletions in region 4 of the mRNA 5'UTR : There will be no formation of the attenuator by the 5' UTR mRNA. Transcription will proceed.
Deletion of the string of adenine nucleotides that follows region 4 in the 5'UTR: No termination will occur because for the attenuator to function as a terminator, it requires uracil nucleotides and not adenine following region 4 in the mRNA 5' UTR.
How would a change to the sequence of nucleotides in a DNA segment affect the
mRNA transcribed from the DNA?
Answer:
The mRNA that was transcirbed determines what amino acid would be attached.
Explanation:
For instance, lets say the complementery mRNA codon said GAU, the amino acid assosioted with this codon is aspartic acid. If the sequence were to change to GAA then the amino acid would be glutamic acid. I hoped this helped! If need any clarifications tell mehhhhh!!
Yes, any change in the gene sequence WILL AFFECT the mRNA transcribed from the DNA. However, a change in the mRNA sequence MAY or MAY NOT affect the protein translated from the mRNA.
During gene transcription, a fragment of DNA is used as a template to create an exactly complementary messenger RNA (mRNA) sequence.
In consequence, any change in the DNA nucleotide sequence will produce a change in the complementary mRNA sequence.
Subsequently, this mRNA travels to the ribosome where it is used as a template to create a protein by a process called 'translation'.
During translation, triplets of nucleotides or 'codons' are read by the ribosome in order to add specific amino acids in the nascent polypeptide chain.
There are codons that encode for the same amino acid, thereby a change in the mRNA sequence may or may not produce changes in the protein synthesized from the mRNA. It is for that reason that the genetic code is said to be redundant.
In conclusion, any change in the gene sequence WILL AFFECT the mRNA transcribed from the DNA. However, a change in the mRNA sequence MAY or MAY NOT affect the protein translated from the mRNA.
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1 Which of the following is not a household use of water?
A. laundry
B. drip irrigation
C. bathing
D. watering the lawn
Answer:
Drip Irrigation
Explanation:
First of, using process of elimination, laundry, bathing, and watering the lawn are all household uses of water. Drip irrigation is a way of watering large areas of land, like on a large scale farm. Hope this helps!
Cells only synthesize DNA from the 5′ to the 3′ end, and since double-stranded DNA is complementary, both strands cannot be replicated in the same way. How do cells handle this situation? View Available Hint(s) Cells only synthesize DNA from the 5′ to the 3′ end, and since double-stranded DNA is complementary, both strands cannot be replicated in the same way. How do cells handle this situation? The lagging strand is not synthesized at this point. The lagging strand must be synthesized in smaller units that are ultimately attached by the action of DNA ligase. Okazaki fragments are synthesized from both the leading and lagging strands. The lagging strand undergoes a conformational change to make a hairpin structure, which allows DNA synthesis in the proper order.
Answer:
The lagging strand undergoes a conformational change to make a hairpin structure, which allows DNA synthesis in the proper order.
The lagging strand must be synthesized in smaller units that are ultimately attached by the action of DNA ligase.
Explanation:
For DNA synthesis to occur on the lagging template strand, the lagging template strand is oriented in such a way that it forms an hairpin structure with the SSB proteins still in place.
This allows the structure to be in corformation with the rest replisome machinery and also allow the synthesis of DNA in the 5'-3' direction forming okazaki fragments in a discontinous backstitching mechanism which are then sealed toghether by the enzyme Ligase.
An orange tree is an example of a because it contains seeds in fruit.
Answer:
flowering plant
Explanation:
Answer:
Flowering plant
Explanation:
It contains seeds in the fruit.
Scientists are studying the structure and function of receptor x, a single-polypeptide protein that is found in the membrane around certain types of cells. receptor x contains no alpha-helices or beta sheets. a specific molecule outside the cells is recognized and bound by receptor x. the binding of the molecule to receptor x causes the cells to have a particular response. identify the process used to form the covalent peptide bonds that join amino acids into a polypeptide
The process used to form the covalent peptide bonds joining amino acids into polypeptide is : Condensation reaction
Although your question is incomplete attached below is the missing data related to your question.
Covalent Peptide bonds are bonds formed between the carboxyl group of a molecule reacting with the amino group of a different molecule producing water molecule as part of its product. and this process is known as dehydration synthesis mechanism ( aka Condensation reaction )
Hence the process used to form the covalent peptide bonds joining amino acids into a polypeptide is Condensation reaction
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Final answer:
The covalent peptide bonds forming polypeptides are created during protein synthesis, specifically in the translation stage. Receptor X involves in signal transduction by binding to an external ligand and initiating an intracellular response without the ligand entering the cell.
Explanation:
The process used to form the covalent peptide bonds that join amino acids into a polypeptide is called protein synthesis. Specifically, this takes place during a stage called translation, where ribosomes translate mRNA sequences into polypeptide chains using tRNA molecules that bring the specific amino acids. These amino acids are then connected through peptide bonds, resulting in a long chain that folds into a functional protein. Regarding Receptor X, its response to a molecule binding can be thought of as part of signal transduction, a process where an extracellular signal is converted to an intracellular action. Receptor X, as described, is a cell-surface receptor that is involved in signalling without the need for the ligand to enter the cell.
You are studying body color in an African spider and have found that it is controlled by a single gene with four alleles: B (brown), br (red), bg (green), and by (yellow). B is dominant to all the other alleles, and by is recessive to all the other alleles. The bg allele is dominant to by but recessive to br. You cross a brown (B/by) spider with a pure-breeding green spider. Predict the phenotype of the progeny.
Answer:
50% are brown.50% are green.Explanation:
Given;
B allele is for brown color, so B = brown,
br= red,
bg= green,
by= yellow.
B is dominant over all;
bg is dominant over by;
br is dominant over bg;
by is recessive to all other alleles.
Here, cross between brown (B/by) and pure green (bg/bg).
B/by× bg/bg
progeny
Genotype= B/bg, B/bg, by/bg and by/bg.
Phenotype= B/bg= brown;
by/bg= green
So, 1/2 are brown and 1/2 are green.
In this genetics problem, we are predicting the phenotype of the progeny from a cross between a heterozygous brown spider and a homozygous green spider. Given the dominance relationships of the alleles, the offspring can be either brown (B/bg) or green (by/bg).
Explanation:This question pertains to genetics, specifically, allele dominance. In the given scenario, the B (brown) allele is dominant over all other alleles which means a spider will be brown if it has at least one B allele. The by (yellow) allele is recessive to all other alleles, indicating that a spider will only be yellow if it inherits the by allele from both parents and doesn't have any B allele. The bg (green) allele is dominant to by but recessive to br, hence, a spider will be green if it doesn't have a B or br allele and at least one bg allele.
When a brown spider (B/by) is crossed with a pure-breeding green spider (bg/bg), the offspring will inherit one allele from each parent. Thus, there are two possibilities: B/bg and by/bg. As B is dominant to all, the phenotype of B/bg spider will be brown. For by/bg, since bg is dominant to by, the phenotype will be green. Therefore, the expected phenotypes of the offspring are either brown or green.
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Please answer!!!!! What is the best description of the role of decomposers in the carbon cycle?
A. They release the carbon that remains in the bodies of dead organisms.
B. They absorb carbon from carbon dioxide in the atmosphere.
C. They change carbon dioxide into a form that organisms can use.
D. They prevent carbon from escaping into the atmosphere.
Answer:
D.They prevent carbon from escaping into the atmosphere.
Explanation:
They absorb carbon from carbon dioxide in the atmosphere. They change carbon dioxide into a form that organisms can use.
Hope this helps! : )
What role do photosynthetic play in the process of photosynthesis ?
Answer:
Photosynthetic organisms capture energy from sunlight with pigments.
Explanation:
Answer:
photosynthesis is the process by which plant make their own food in the presence of light....
Explanation:
the factors required for photosynthesis are:
sunlight
chlorophyll
carbon dioxide
water
plants need carbon dioxide,water,chlorophyll and sunlight
If the statement is true, write true. If the statement is false, replace the italicized word or phrase to make it true. 9. Penicillin is a drug that comes from a fungus. Another fungus is the source of antiheadache drugs for organ transplant patients. 10. People eat fungi such as truffles, mushrooms, and the yeast in bread. Fungi also give flavor to cheeses and soda drinks. 11. Respiration produces airy bread and the alcohol in beer and wine. 12. The use of fungi and bacteria to remove pollution is called enviroremediation
Answer:
Each statement is followed by an indication for whether the statement is true or false and an explanation:
9. Penicillin is a drug that comes from a fungus. Another fungus is the source of antiheadache drugs for organ transplant patients.
The first part of this statement is true, penicillium is the fungus that produces penicillium. However, there isn't a record of antiheadache drugs being produced from a fungus for organ transplant patients, or otherwise for that matter.
10. People eat fungi such as truffles, mushrooms, and the yeast in bread. Fungi also give flavor to cheeses and soda drinks.
True. Not all types of fungi are harmful to us, there are several ways we take advantage of micro-organisms and this is just on example.
11. Respiration produces airy bread and the alcohol in beer and wine.
True. The yeast cells undergo aerobic respiration in case of making bread, it's the carbon dioxide they release that causes the bread to rise. During anaerobic respiration, the yeast cells produce alcohol - this process is also called as fermentation.
12. The use of fungi and bacteria to remove pollution is called enviroremediation
False. Environmental remediation is a general term for removing pollution in the environment. When bacteria and fungi are used to help in this process, it is referred to as Bioremediation.
Hope that answers the question, have a great day!
9. True
10. True.
11. True.
12. False.
The following information should be considered:
9. It is true because penicillium is the fungus that generated penicillium. But, there isn't a record of antiheadache drugs being generated from a fungus for organ transplant patients
10. True. As we know that Not all types of fungi should be harmful to us, there are various ways we take advantage of micro-organisms .
11. True. The yeast cells undergo aerobic respiration by making bread, it's the carbon dioxide they release that causes the bread to rise. During anaerobic respiration, the yeast cells generated alcohol - this process is also called as fermentation.
12. False. Environmental remediation is a general term for removing pollution in the environment. At the time When bacteria and fungi are used to help in this process, it is known as Bioremediation.
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For each of the following sentences, fill in the blanks with the best word or phrase selected from the list below. Not all words or phrases will be used; each word or phrase should be used only once. Transporter proteins and ion channels function in membrane transport by providing a ________1__________ pathway through the membrane for specific polar solutes or inorganic ions. A _________2_________ is highly selective in the solute it transports, binding the solute at a specific site and changing conformation so as to transport the solute across the membrane. For an uncharged molecule, the direction of passive transport across a membrane is determined solely by its ________3__________ gradient. On the other hand, for a charged molecule, the _________4_________ must also be considered. The Na K pump is responsible for maintaining high extracellular sodium ion concentrations. This pump carries out a type of transport called _________5_________ . Group of answer choices 1
Answer:
I believe the answer choices are:
passive, symport, free diffusion, hydrophobic, ion channel, hydrophilic, light-driven, passive transport, facilitated diffusion, concentration, amino acid, membrane potential, active transport, transporter protein, noncovalent, amphipathic.
Transporter proteins and ion channels function in membrane transport by providing a 1. hydrophilic pathway through the membrane for specific polar solutes or inorganic ions. A 2. transporter protein is highly selective in the solute it transports, binding the solute at a specific site and changing conformation so as to transport the solute across the membrane. For an uncharged molecule, the direction of passive transport across a membrane is determined solely by its 3. concentration gradient. On the other hand, for a charged molecule, the 4. membrane potential must also be considered. The Na+/ K+ pump is responsible for maintaining high extracellular sodium ion concentrations. This pump carries out a type of transport called 5. active transport.
Explanation:
Polar or water soluble solutes can only interact with the hydrophilic domains of transport proteins.Transporters, along with permeases and carriers, are a type of membrane transport proteins. Transport proteins bind the solute molecules and undergo conformational changes to transfer the molecule across the membrane.Uncharged molecules moves across membranes based on their concentration gradient i.e. the difference of concentration between the intra and extracellular environment. Whereas, charged molecules and ions require a membrane potential to be transported. One example is the Na+/K+ pump.Na+/K+ pump is an ATP dependent ion channel that utilizes the enzyme Na+/K+-ATPase to break down ATP into ADP and inorganic phosphates.Which of the following statements is correct? Which of the following statements is correct? The heart is ventral to the breastbone. The heart is posterior to the spine. The breastbone is posterior to the spine. The breastbone is ventral to the spine
Answer:
The correct is, the breastbone is anterior (ventral) to the spine.Explanation:
1. Anterior; it means that something is towards the front of the body or is more towards the front of the body than something else.
2. Posterior: the word posterior means that something is towards the back of the body or more towards the back of the body than another thing when comparing two different structures.
For example, our breastbone, is anterior to our spine, and our spine is posterior to our breastbone, since the breastbone is towards the front of our body and the spine is toward the back of our body.
The correct statement is: 'The heart is ventral to the breastbone'. 'Ventral' refers to the front side of the body. Therefore, the heart is located in front of the breastbone. Other statements are incorrect based on anatomical orientations.
Explanation:The correct statement is: 'The heart is ventral to the breastbone'. In anatomical terminology, 'ventral' refers to the front side of the body.
Therefore, when you say the heart is ventral to the breastbone, you're saying the heart is located in front of the breastbone (or sternum), which is correct. The heart is not posterior (behind) the spine as the heart is located in between the lungs, slightly towards the left.
Similarly, the breastbone is not posterior to the spine, but is in front of it. So, it is not correct to say 'The breastbone is ventral to the spine' as the breastbone is dorsal (towards the back) to the spine.
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Which of the following among A-D is false concerning animal viruses? A) During the courses of an influenza virus infection, flu virus proteins are likely to be found in the nucleus, host cell membrane, and cytosol. B) The type of life cycle an animal virus possesses is mostly determined by its genome type C) Lambda phage can form a prophage; an equivalent animal virus type like this would be a retrovirus D) Interferons are produced by certain hosts to defend against animal viruses E) None of A-D is false; all are true
Answer:E. None of A-D is false; all are true
Explanation: virus protein are most likely to be found in nucleus, cytosol and host membrane during the cause of an influenza because the virus first penetrate the cytosol before it RNA are transported to the nucleus where transcription and replication of the viral RNA occurs. Every other option is correct