Answer:
1. TGATTGCCATCGATCG
2. CAGTCAGCTAGTACGT
3.TAGCACGACTAGCATG
4.TACGACTATGTGGACT
5.ACCTGACTAGGTAGC
Explanation:
7. You are stranded on an island covered in
vegetation. To escape, you decide to build
a raft out of layers of reeds and small
branches.
(a) Would it be better to line up the reeds in
each layer and tie them together, or to
crisscross them and weave them together?
(b) Would it be better to line up the reeds in each layer in the same direction as the layer below, or should the reeds in each layer point in different directions, explain.
A. Criss-cross them and tie them together
B. Your raft would hold up better if you made them almost on top of each other in different directions otherwise you face them in the same direction your sticks would just fall flat
A science class is planning a field trip to a local farm that has a large pond. Which of the following lists the order of biological organization from smallest to largest that the students can expect to find at the pond?Immersive Reader
(1 Point)
Organism, community, population, ecosystem
Organism, population, community, ecosystem
Population, organism, community, ecosystem
Population, organism, ecosystem, community
The students can expect to find at the pond from smallest to largest: organism >> population >> community >> ecosystem.
An organism is an independent living system composed of one or more cells, which is able to carry out metabolic activities (e.g., growth and differentiation).A population is a group of organisms of the same species living in a determined area.A community is a group of populations living together in the same geographical area.An ecosystem is a community of organisms interacting together and with their physical environment.In conclusion, the students can expect to find at the pond from smallest to largest: organism >> population >> community >> ecosystem.
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Independent assortment occurs only in cells that are heterozygous for two genes (AaBb) and not in cells that are completely homozygous (AABB or aabb). View Available Hint(s) Independent assortment occurs only in cells that are heterozygous for two genes (AaBb) and not in cells that are completely homozygous (AABB or aabb). True False
Answer:
False
Explanation:
Gregor Mendel, who was referred to as the FATHER OF GENETICS, discovered the principles that governs heredity. One of those principles which he called LAW OF INDEPENDENT ASSORTMENT states that the alleles of a gene randomly segregates into gametes independently of the alleles of another gene. This means that during gamete formation (meiosis), the separation of the alleles of one gene doesn't affect the separation of the alleles of another gene.
Mendel discovered this principle when he worked with two genes that was responsible for two distinct characters. Hence, in a cell that contains two genes responsible for two different characters in the organism, independent assortment will always occur during gamete formation. Although, in an organism that is homozygous for both traits (AABB or aabb), only one type of allelic combination will be produced in the gamete. However, the alleles will still randomly align and separate independently of one another during Metaphase and Anaphase stages of meiosis.
Answer:
False
Explanation:
The law of independent assortment states that characters are inherited independently of one another. That is, for example, genes A and B are inherited independently without any interference of A on B or B on A.
Independent assortment occur in genes that are not linked together on the same chromosome. More specifically, two genes on the same chromosome will assort independently provided there is a certain minimum distance between them.
Hence, independent assortment has nothing to do with whether a gene is homozygous or heterozygous.
The answer is false.
Identify some geographical barriers that could separate populations.
Answer:
Oceans, lakes, any large bodies of water.
Explanation:
In terms of country populations, oceans separate the different populations from each other.
At a minimum, primary producers require water, carbon dioxide, and light. These are things that are readily available in most ecosystems. However, we do not observe the same rates of net primary productivity in every region of the globe. Which of the following statements BEST reflects one reason why rates of productivity are not the same everywhere?
A.) Rates of net primary productivity are actually the same everywhere; scientists just need to calculate the rates relative to plant biomass in a given ecosystem.
B.) Although water is limited in certain ecosystems, nutrients that are scarce actually limit net primary productivity because they are necessary for growth.
C.) Rates of net primary productivity are actually limited by the amount of solar radiation. If net primary productivity were calculated as a yearly average, then this would show that ecosystems have the same rate of productivity.
D.) Although water is limited in certain ecosystems, irrigation would solve the problem and equalize rates of net primary productivity in every ecosystem.
Explanation:
Primary productivity measures the rate at which solar energy is stored by plants as organic matter, and is therefore a measure of the rate at which solar energy is captured and made available to the rest of the food chain
Gross primary productivity (GPP) is the total amount of carbon assimilated by plants within a given area over a specified time-frame
Net primary productivity (NPP) is GPP minus the flux of autotrophic respiration of assimilate used for the plant's own metabolism (R), can be represented as:
NPP= GPP-R
Rates of productivity are not same everywhere because if amount of nutrients are scarce then it will decrease net primary productivity because they are necessary for growth
Final answer:
Net primary productivity differs globally due to variable nutrient availability, with nitrogen often being a critical limiting factor. Even with sufficient light and water, without enough nutrients, plant growth and productivity are constrained. The correct answer is b).
Explanation:
The statement that best reflects why rates of net primary productivity are not the same everywhere is B.) Although water is limited in certain ecosystems, nutrients that are scarce actually limit net primary productivity because they are necessary for growth. Nutrients, including nitrogen, are often limiting factors in plant growth and primary production as they are essential components that plants need to grow and which cannot be compensated for by other means such as increased light or water.
Ecosystems vary greatly in terms of climate, available nutrients, and other abiotic factors that influence the rate of primary productivity. For example, nitrogen is a critical element for plant growth and often limits productivity; even when light and water are abundant, if nitrogen and other nutrients are not available in sufficient quantities, plant growth will be constrained, and net primary productivity will be lower. This explains why different regions of the globe, even with similar amounts of water, carbon dioxide, and light, can have vastly different rates of productivity.
Why is it so difficult to tell the impact of pollution in the deep ocean region?
cause it's so deep in the ocean
a sample of wood that originally contain 10 g of carbon-14 Now contains only 50 g of carbon 14 approximately how many years ago was the sample apart of living tree
Answer:
5,700 years
Explanation:
Recombination between linked genes comes about for what reason?
Recombination between linked genes happens during meiosis through a process known as 'crossing over'. The resulting offspring acquire mixed traits enhancing genetic diversity.
Explanation:Recombination between linked genes usually occurs during meiosis, specifically during the prophase of Meiosis I. This is a process known as 'crossing over.' The reason for this recombination is to create genetic diversity within the resulting offspring.
The chromosomes align closely and exchange equivalent portions of DNA, resulting in new combinations of genes that are not present in the parent organisms. Every daughter cell, as a result, contains a combination of characteristics from both parents, hence increasing genetic diversity in the population.
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Recombination between linked genes occurs due to the process of crossing over during meiosis. This allows for the exchange of segments of DNA between homologous chromosomes, providing genetic diversity. The frequency of recombination is influenced by the proximity of the genes on the chromosome.
Explanation:Recombination between linked genes comes about due to the process known as crossing over that occurs during meiosis. When homologous chromosomes align during meiosis, they can exchange segments of genetic material. This exchange, or recombination, can result in new combinations of alleles on a chromosome, creating genetic variety.
Genes that are near each other on the same chromosome tend to be inherited together and are therefore 'linked'. However, the closer the genes are, the less likely a recombination event is to occur between them.
However, it's important to note that recombination is a random event. Therefore, genes that are very far apart on the same chromosome might still assort independently because of recombination events that occur in between them. This can result in unexpected combinations of traits not seen in the parent organism, which is one of the reasons underlying the genetic diversity we observe in nature.
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Intermediate fossil forms are important evidence of evolution because they show
Intermediate fossils provide a chronological record of changes in species over time, linking different evolutionary stages and showing gradual adaptations. Examples include Archaeopteryx, which shows characteristics of dinosaurs and birds, and Tiktaalik, which had features of both fish and tetrapods. They are critical evidence of evolution.
Explanation:Intermediate fossils are crucial pieces of evidence in the study of evolution because they provide a chronological record of changes in species over time. Specifically, these fossils act as a bridge, linking different evolutionary stages. They showcase gradual changes and adaptations that have occurred in organisms, which supports the theory of evolution through natural selection.
For example, an intermediate fossil found, known as Archaeopteryx, shows characteristics of both dinosaurs (reptiles) and birds. This implies that birds evolved from reptilian ancestors. Similarly, intermediate fossils such as Tiktaalik, which had features of both fish and tetrapods, demonstrate the transition from aquatic to terrestrial life.
Therefore, these intermediate fossils are vital for our understanding and evidence of evolution.
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What have scientists learned about the classification of amphibians
Answer:
Scientists learn a number of things about the classification of amphibians is that there are three categories of amphibians that are different from one another.
Explanation:
Amphibians have three categories i. e. the first one is frog and toad, the second one is salamander and the third one is newts and caecilians. All of these have one thing in common that they require water for their survival. They are the organisms which are capable of living on both land and water environment. About 6,200 species of amphibians were discovered by the scientists.
Answer:
Reptiles are more closely related to birds than amphibians.
Reptiles and birds are so closely related that according to modern classification, they are part of the same group.
Explanation:
When brown tree snakes were accidentally introduced onto the island of Guam, they had no natural predators. These snakes sought out and ate many of the eggs of insect-eating birds. What probably occurred following the introduction of the brown tree snakes?
Answer:
there were no more insect eating birds. they went extinct
Answer:
The insect population increased.
Explanation:
How might marine scientists combat eutrophication?
Eutrophication is the overgrowth of algae in lakes and ponds
that is usually caused by the introduction of different chemicals
into the water from fertilizer run-off. Some ways to combat this
are to increase the flow of moving water, prevent contamination
from fertilizer, and reduce pollution of our lakes and streams.
Eutrophication is the overgrowth of algae in lakes and ponds that is usually caused by the introduction of different chemicals into the water from fertilizer run-off.
What is Eutrophication?Eutrophication is a big word that describes a big problem in the nation's estuaries. Harmful algal blooms, dead zones, and fish kills are the results of a process called eutrophication which occurs when the environment becomes enriched with nutrients, increasing the amount of plant and algae growth to estuaries and coastal waters.
Sixty-five percent of the estuaries and coastal waters in the contiguous U.S. that have been studied by researchers are moderately to severely degraded by excessive nutrient inputs.
Eutrophication sets off a chain reaction in the ecosystem, starting with an overabundance of algae and plants. The excess algae and plant matter eventually decompose, producing large amounts of carbon dioxide.
Therefore, Eutrophication is the overgrowth of algae in lakes and ponds that is usually caused by the introduction of different chemicals into the water from fertilizer run-off.
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Which of the answer choices correctly lists the three forms of nitrogenous waste in order from least to most toxic? uric acid, ammonia, urea urea, ammonia, uric acid ammonia, urea, uric acid urea, uric acid, ammonia uric acid, urea, ammonia
Answer:
uric acid < urea < ammoniaExplanation:
Such types of metabolic wastes that contain nitrogen are called nitrogenous wastes such as ammonia, urea, and some other. The formation of these waste materials are based on the nature of the organisms such as urea and uric acid are the common nitrogenous waste of the terrestrial organisms. Ammonia is generally produced in freshwater fishes and some other marine organisms. Since ammonia requires a sufficient amount of the water to excrete out so aquatic organisms excrete this wastes. Ammonia is more soluble in water has the highest toxic nature than other nitrogenous wastes. The organisms that produce ammonia as waste products are called ammonotelic organisms such as fishes, protozoans, and some other aquatic organisms. The organisms that produce urea as waste material are known as ureotelic such as mammals and some other. Urea has a less toxic effect than the ammonia molecule. Uricotelics are those organisms that excrete uric acid as nitrogenous waste such as birds, reptiles and some other. Uric acid is the least toxic in comparison to urea and ammonia.which eukaryotic cell is filled with a solution of water and nutrients called_________ inside of which is sort of scaffolding called the_______
Answer:
Your answers are CYTOPLASM and CYTOSKELETON.
Berkowitz and LePage (1967) found that frustrated men delivered more shocks when:_____
a. they were initially depressed.
b. badminton racquets happened to be in the room.
c. they had just received a shot that lowered their serotonin levels.
d. guns happened to be in the room.
Answer: d. guns happened to be in the room.
Explanation:
The weapon effect theory is a theory of social psychology. It suggests that mere presence of weapon or its picture can lead to aggressive behavior or may produce shock in human participants.
This theory was demonstrated by the Leonard Berkowitz and Anthony LePage in 1967. These researchers selected 100 male university students for one laboratory session.
These were randomly assigned to receive one or seven shocks. These shocks generated by the weapon those were kept on the laboratory and were related to belong to one of the peer. This will may generate mental shock among the students.
4. Which of the following radioactive isotopes takes the longest to decay: Carbon-14, Potassium-40, Uranium-238 or
Rubidium, 87?
Answer:
Rubidium 87
Explanation:
Final answer:
Rubidium-87 is the radioactive isotope with the longest half-life of 48.8 billion years, taking the longest to decay compared to Carbon-14, Potassium-40, and Uranium-238, which have half-lives of 5,730 years, 1.25 billion years, and 4.5 billion years, respectively.
Explanation:
The radioactive isotope that takes the longest to decay among Carbon-14, Potassium-40, Uranium-238, and Rubidium-87 is Rubidium-87. While Carbon-14 has a relatively short half-life of 5,730 years, and is used for dating relatively recent remains, Potassium-40 has a longer half-life of 1.25 billion years. Uranium-238 has a half-life of 4.5 billion years. However, the longest half-life belongs to Rubidium-87, which decays into Strontium-87 over a staggering 48.8 billion years, making it the isotope that takes the longest to decay of those listed. This extreme longevity allows Rubidium-87 to be used for dating the oldest rocks and for finding the minimum age of the Earth.
Which methods is utilized by eukaryotes to control their gene expression that is different from the type of control found in bacteria?
Answer:
Method which is utilized by eukaryotes to control their gene expression that is different from the type of control found in bacteria is control of both RNA splicing and chromatin remodeling.
Explanation:
There is a difference in the gene expression of the prokaryotes and eukaryotes. In prokaryotes, transcription and translation occur simultaneously in the cytoplasm, and gene regulation occurs at the transcriptional level. In eukaryotes gene expression is regulated during transcription and RNA processing, which take place in the nucleus, and during protein translation, which takes place in the cytoplasm.
Prokaryotic cells can only regulate gene expression by controlling the amount of transcription. As eukaryotic cells evolved, the complexity of the control of gene expression increased. For example, with the evolution of eukaryotic cells came compartmentalization of important cellular components and cellular processes. A nuclear region that contains the DNA was formed. Transcription and translation were physically separated into two different cellular compartments. It therefore became possible to control gene expression by regulating transcription in the nucleus, and also by controlling the RNA levels and protein translation present outside the nucleus.
Eukaryotic gene expression is more complicated than prokaryotes because the process transpires separately. The gene is monitored at many levels in eukaryotes.
Methods that are utilized by eukaryotes to regulate their gene expression that differs from prokaryotes is control of both splicing and chromatin reconstruction.
In eukaryotes, gene expression is regulated throughout transcription that takes place in the nucleus, and during translation, which occurs in the cytoplasm.Prokaryotic cells can only monitor gene expression by examining the measure of transcription.In Eukaryotes genes are regulated at both transcription and translational stages.In Eukaryotes the compartmentalization of transcription and translation made the regulation of both the process easy.To learn more about eukaryotic gene expression follow the link:
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Did you record all data throughout the virtual lab
Answer:
yeah
Explanation:
Answer:
yes
Explanation:
what is the name of the organ that provides pressure to transport body fluid
Answer:
Extracellular fluid (ECF) denotes all body fluid outside the cells of any multicellular organism. ... These constituents are often called fluid compartments. ... The extracellular fluid provides the medium for the exchange of substances between ... is also evenly distributed at the correct partial pressure to all the cells of the body.
Explanation:
Answer:
The Liver Provides pressure for the transfer of body fluid.
Mechanisms for controlling enzyme activity include all of the following EXCEPT ___________.a. covalent modification of the enzyme. b. feedback inhibition. c. degradation of the enzyme. d. addition of short sections of new amino acid sequence.
Answer:
d. addition of short sections of new amino acid sequence.
Explanation:
Amino Acids don't really deal with controlling Enzymes. I hope this helps:)
Chloroplasts found in plants arose via ________.a. endosymbiosis of euglenids b. endosymbiosis of cyanobacteria c. endosymbiosis of proteobacteria d. endosymbiosis of dinoflagellates
Answer:
b. endosymbiosis of cyanobacteriaExplanation:
A chloroplast is an organelle that plays important roles in the plants during the process of photosynthesis. It has certain pigments that are responsible for the trapping of the sunlight such as chlorophyll and some other pigments. Since each chloroplast has two membranes so named as the double-membrane organelles like mitochondria and some other organelles. It is considered that the evolution of the chloroplast took place by the process of endosymbiosis of cyanobacteria. Cyanobacteria are such kinds of prokaryotic organisms that have the ability to prepare their food by the mechanism of photosynthesis.Chloroplasts in plants originated from the endosymbiosis of cyanobacteria, wherein an ancestral prokaryote engulfed a cyanobacterium. This event is referred to as primary endosymbiosis and has occurred twice in the evolutionary history of eukaryotes.
Explanation:The chloroplasts found in plants originated through a process known as endosymbiosis of cyanobacteria. The theory suggests that an ancestral prokaryote engulfed a photosynthetic cyanobacterium, which eventually evolved into modern-day chloroplasts. This is known as primary endosymbiosis, leading to chloroplasts surrounded by two membranes. Similarities in DNA sequences between cyanobacteria and algae also support this theory. The acquisition of endosymbionts happened twice in the course of eukaryotic evolution, with one notable event being the inception of the Archaeplastida lineage, a result of endosymbiosis with cyanobacteria.
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What does an organisms genotype describe?
Answer:
In a broad sense, the term "genotype" refers to the genetic makeup of an organism; in other words, it describes an organism's complete set of genes. ... A particular genotype is described as homozygous if it features two identical alleles and as heterozygous if the two alleles differ.
Hope this helps :)
Explanation:
An organism's genotype refers to its full hereditary information encoded in its DNA and consists of all the genes and alleles passed down from its parents. The phenotype represents the physical expression of these genes, influenced by both the genotype and environmental factors. Environmental impact on gene expression is referred to as epigenetics.
An organism's genotype is essentially its genetic blueprint. It comprises the entire set of genes and alleles that are inherited from both parents, determining everything from hair color to blood type. These genetic sequences are responsible for the organism's hereditary information. In sexual reproduction, the genotype is formed from the combination of the parents' genes. Conversely, an organism's phenotype is a manifestation of its genotype and is influenced by the organism's environment. It encompasses all observable characteristics, like physical appearance, behavior, and biochemical properties.
For example, if an organism inherits alleles for blue eyes (bb) from both parents, the genotype would be 'bb', and the physical presence of blue eyes is a result of the expressed genes, constituting the phenotype. However, environmental factors, such as sunlight exposure, can also influence the expression of certain traits, a concept known as epigenetics.
It's important to note that while we often refer to an organism's complete set of genetic information as its genotype, in practice, we usually focus on specific genes that are relevant to the study or context. Therefore, we sometimes discuss a 'partial genotype', which looks at particular genes and how they contribute to 'partial phenotypes', such as a single trait or characteristic.
Which position is the fetus in when Leopold maneuvers disclose a firm, A. round prominence over the symphysis pubisB. a smooth, convex structure along her right sideC. irregular lumps along her left side D. and a soft roundness in the fundus
Answer:
The question was not framed well and it was incomplete. The well-framed and complete question is pasted below.
While performing Leopold maneuvers on a client who has been admitted to the birthing room, the nurse identifies a firm, round prominence over the symphysis pubis; a smooth, convex structure along her right side; irregular lumps along her left side; and a soft roundness in the fundus. What is the fetal position?
a. LOP
b. RSA
c. ROA
d. LOA
ANSWER
The position of the fetus is right occiput anterior (ROA).
Explanation:
It should be understood that the prominence over the symphysis suggests a vertex presentation, and the fetal occiput and back are in the right anterior quadrant.
It should be noted also that the occiput and back are on the mother's right side, therefore, the Left occiput posterior (LOP) is ruled out because the occiput is not found at the left posterior quadrant.
Then, the Right sacral anterior (RSA) will also be ruled out due to the fact that the fetus is in a vertex, not a breech.
And lastly, the Left occipital anterior (LOA) is ruled out due to the presence of irregular lumps on the left side. This suggests that the fetus's back is in the mother's right quadrant.
* Required 1. The stems and fruits of pineapple plants contain a group of protein-digesting enzymes collectively called bromelain and often used as an antibrowning agent for fruits and vegetables. Fruits and vegetables brown when they are bruised during transport or sliced and exposed to air. This browning is controlled by enzymatic pathways that produce brown pigments. The browning of fruits and vegetables reduces the nutritional value of the food, so antibrowning agents such as bromelain are used. Identify the type of monomer of which this enzyme is composed.
Answer:
Bromelain is a group of sulfhydryl containing proteases. Each of these proteases is composed of amino acids, the building blocks of protein.
Explanation:
Bromelain:
Bromelain is not regarded as a single enzyme. It is a mixture of proteolytic enzymes as well as phosphatases, glucosidases, peroxidases, cellulases and glycoproteins. At first, bromalain was regarded as an enzyme mixture produced by pineapple plants (Ananas comosus) but now it is referred to as any protease extracted from the Bromeliaceae family.
Proteins are macromolecules composed of amino acid subunits or monomers. Amino acids, linked through peptide bonds, form the complex globular structures of enzymes.
Explain how this system maximizes glucose absorption from the intestinal lumen into the epithelial cells and from the epithelial cells into the blood.
Transport of glucose from the intestinal lumen into the blood. Activity of the Na+/K+ ATPase (green) in the basolateral surface membrane generates Na+ and K+ concentration gradients, and the K+ gradient generates an inside-negative membrane potential.
Explanation:
The Na+K+ ATPase uses the energy of ATP hydrolysis to move Na+ out of the epithelial cells lining the intestine and into the blood. The reduced concentration of Na+ inside the cell coupled with high Na+ inside the lumen of the intestine results in a driving force for the movement of Na+ into the cell.
The cotransporters in the membrane of the epithelial cell facing the intestine allow Na+ to enter only when accompanied by either glucose or one of the amino acids (each have their own set of co-transporters).
Glucose then moves into the blood through the permease in the membrane between the cell and the blood. Thus, ATP is used as an energy source to drive Na+ out of the cell, resulting in glucose transport from the intestine to the blood.
The digestive system maximizes absorption from the intestinal lumen into the epithelial cells and from the epithelial cells into the blood through the use of microvilli.
The lining of the intestines has specialized cells in order to maximize the absorption of nutrients. These epithelial cells absorb from the lumen and from the epithelial cells into the blood. The specializations are called microvilli.
The specialization present is in the form of microvilli, multiple prolongations of the exterior membrane that expand the surface area, allowing the cells to absorb nutrients over a larger area. This is the method used by the digestive system to maximize the absorption of glucose and other nutrients.
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Codominance is a inheritance pattern. It states that both traits are and both appear in the organism. Neither trait is masked.
Codominance is a non-Mendelian inheritance pattern. It states that both traits are dominant and both appear in the organism. Neither trait is masked.
What is Codominance?Codominance may be characterized as a type of biological phenomenon in which the alleles are able to express themselves independently even when present together. For example, ABO blood grouping in humans.
Blood type is determined by the antigens on the blood cells. ABO blood grouping is controlled by gene I which has three alleles as [tex]I^A, I^B, and I^O.[/tex] Codominance, as it relates to genetics, refers to a type of inheritance in which two versions (alleles) of the same gene are expressed separately to yield different traits in an individual.
Therefore, codominance is a non-Mendelian inheritance pattern. It states that both traits are dominant and both appear in the organism. Neither trait is masked.
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Answer:
1. Mendelian, dominant, recessive
2. non-mendelian, dominant
3. non-mendelian dominant
Explanation:
The primary function of the proximal convoluted tubule is
Answer:
This question lacks options, options are:
A) filtration.
B) absorption of ions, organic molecules, vitamins, and water.
C) secretion of acids and ammonia.
D) secretion of drugs.
E) adjustment of urine volume.
The correct answer is B.
The primary function of the proximal convoluted tubule is absorption of ions, organic molecules, vitamins, and water.
Explanation:
The proximal tubules are part of the nephron, a system that filters the blood that passes through the kidneys. The function of the proximal convoluted tubule can be summarized in three processes: absorption, excretion and control of the acid-base balance of the blood. In the proximal convoluted tubule, all potassium, glucose and amino acids are reabsorbed by active transport, 87.5% of sodium and 40% of urea, filtered by the glomerulus. This absorption is accompanied by the exit of the tubule of 87.5% of the filtered water.
The function of the proximal tubule is for the reabsorption of filtrate which is required for homeostasis equilibrium.
The proximal convoluted tubule is found in the renal tubule of the kidney. The renal tubule is responsible for absorption and ion secretion.
The function of the proximal tubule is for the reabsorption of filtrate which is required for homeostasis equilibrium. The proximal convoluted tubule can be divided into pars convolute and pars recta.
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are food webs different to food chains? Explain why food webs are more
useful.
Answer:
Explain a food chain and a food web.
YEaheah
Explanation:
Yes, they are different,
A food web can show many different consumers and producers in an ecosystem while in the other hand a food web just show the relationship between one group of producers and consumers.
In studying fossils at a particular location, biologists found an insect in a layer of shale, a flower in a layer of sandstone, a fish in a layer of limestone, a reptile in a layer of shale, and a bird in a layer of limestone. The insect probably lived at the same time as the:_________.
1) fish.
2) bird.
3) flower.
4) reptile.
Answer:
4) reptile.Explanation:
Such type of the trace of living things that were existed in past or preserved remains of the living organisms are called fossils. Generally bones, exoskeleton and some other parts are found during the geographical study. These fossils are used for various experimental purposes such as in the study of the evolution of the organisms and some other. Shale is made up of weathering rock and is present in thin layers and contains different types of fossils record of the organisms for many years. Fossils of reptiles and insects were found at the same time.
Please Help Quick!
Which technology would best help the United States wean itself from foreign oil?
geothermal energy
biodiesel fuel
solar-heated homes
more nuclear power plants
Hey your answer is B. "biodiesel fuel"
hope this helps!
Biodiesel fuels would best help the United States wean itself from foreign oil.
What are the uses of biodiesel fuel?Biodiesel is a renewable, biodegradable fuel manufactured domestically from vegetable oils, animal fats, or recycled restaurant grease. Biodiesel meets both the biomass-based diesel and overall advanced biofuel requirement of the Renewable Fuel Standard.
Biodiesel is a domestically produced, clean-burning, renewable substitute for petroleum diesel. Using biodiesel as a vehicle fuel increases energy security, improves air quality and the environment, and provides safety benefits.
Biodiesel is produced from vegetable oils, yellow grease, used cooking oils, or animal fats. The fuel is produced by transesterification—a process that converts fats and oils into biodiesel and glycerin (a coproduct).
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