Answer:
The palisade cells are the main site of photosynthesis, as they have many more chloroplasts than spongy mesospheres, and also have several adaptions to maximize photosynthetic efficiency; Large Vacuole - Restricts chloroplasts to a layer near the outside of the cell where they can be reached by light more easily.
Explanation:
Mutations that improve an individuals ability to
survive and reproduce are
Explanation:
The answer is genetic recombination. this is when genetic material is rearranged as cells are ready to divide
proteins are rearranged. can introduce different traits in an organism...hope this is helpful...;)
Answer:
Beneficial
Explanation:
Mutation is a sudden change that occurs in the gene sequences. Mutation can have both positive or negative effect on living organisms. It can lead to disorders and also one of the ways that causes evolution of the species. If the mutation, improves the individual's ability to improve their survival or reproduction then it is called as beneficial.
Due to mutation, the gene sequences changes due to which the amino acids encoded during the process of translation also changes. If different proteins are formed then the function that was supposed to be performed by the proteins of non-mutated genes varies.
A leaf preserved in hard transparent material is found in:
Answer: Fossilized Amber.
Explanation:
Amber is a Fossilized tree resins which has a distinctive color and beauty and has been in existence since the Neolithic time and it well appreciated by people.
It is formed when plants or animals died in a water environment and it is buried in mud and silt.
Name 3 parts found in a plant cell that are also found in an animal cell
How do endothermic and exothermic reactions differ?
Exothermic reactions release heat, as seen in combustion processes, while endothermic reactions absorb heat, as seen in the reaction in cold packs. Even exothermic reactions, however, require a small amount of initial energy input, known as the activation energy. The strength or weakness of bonds in the reactants and products also influences whether a reaction is exothermic or endothermic.
Explanation:Endothermic and exothermic reactions differ in terms of heat absorption and release. An exothermic reaction is a process that releases heat. An example of this is the combustion reaction that occurs when using an oxyacetylene torch; this process releases energy in the form of both heat and light.
On the other hand, an endothermic reaction is a process that absorbs heat. An example is the reaction that occurs in a cold pack, used for treating muscle strains. When water and salt like ammonium nitrate in the pack are combined, the mixture absorbs heat, resulting in a sensation of cold.
It's also important to note that even exothermic reactions require a small amount of energy input to initiate, known as the activation energy. In terms of bond energies, exothermic reactions result when the bonds in the products are stronger than those in the reactants. Conversely, endothermic reactions occur when the bonds in the products are weaker than those in the reactants.
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Question 10 (2 points) The result of the replication of a DNA molecule resules in identical copie(s) of DNA which are to the original parental DNA molecule.
Answer:
...which are identical to the original parental DNA molecule.
Explanation:
Before a cell will divide the DNA it contains must first replicate to ensure that the resulting cells from the division will contain the same DNA for it to function similarly as well. Replication of DNA is a semi-conservative because the resulting DNA molecule will be half old or half new, where one strand is from the parent DNA and the other is a newly formed strand.
The newly formed strand of each side will be identical to the former complementary strand before it unzipped.
The replication of DNA results in two identical copies of the original DNA molecule, with each new DNA consisting of one original and one new strand, known as semiconservative replication.
The result of the replication of a DNA molecule results in two identical copies of DNA which are identical to the original parental DNA molecule. This process is known as semiconservative replication, meaning that each of the newly formed DNA molecules will consist of one strand from the original molecule and one new strand.
During DNA replication, each strand of the original DNA's double helix is used as a template for the construction of a complementary strand, leading to two DNA molecules that are identical to the original parent molecule.
An unknown substance is dissolved in water. The solution is corrosive,conducts electricity, and has a higher concentration of H+ ions than OH-ions. What kind of solution does this unknown substance form?
A. An acidic solution
B. A basic solution
C. A neutral solution
D. There is no way to tell whether it is an acid or a base.
Answer:
A
Explanation:
These are the properties of an acidic solution. The higher the H+ ions in the solution the higher the acidity. H+ is also a measure of pH because pH is the negative log of the H+ ions in a solution. The more the H+ ions, the lower the pH of the solution. The H+ ions also allow the solution to conduct electricity because they take up the electrons and transport across from the anode to the cathode. Acidic solutions are also corrosive because they are highly oxidizing – the H+ ions accept electrons to turn to H₂ gas.
Chapter 2.2 and 2.3 biology crossword
The most reactive metals are located at the ______________ of the periodic table.
Answer:
bottom of the periodic table
Explanation:
Answer:
at the bottom left corner
Explanation:
Why is energy important to a living organism?
to what class minerals do gold, sliver, and copper belong
Gold, silver, and copper are classified as native elements and metallic minerals, which are elements found in nature in a pure or nearly pure state and contain valuable metals.
Gold, silver, and copper belong to a class of minerals called native elements. These are substances that occur in nature in a pure or nearly pure state. Gold is an example of one such element; it is chemically inert and therefore is often found in its elemental form. Silver and copper also occasionally appear as native elements, although they can be more reactive than gold. Copper, for instance, can be found as native copper but it also often occurs in oxidized states or as part of copper minerals like chalcocite and chalcopyrite.
Minerals such as gold and copper are also categorized as metallic minerals because they contain valuable metals and can be used for various commercial applications. These are distinct from non-metallic minerals like sand or stone, and fuel minerals like coal or oil. In the mining and geology world, these substances are mined for their metallic content and their economic value, which contributes to the industry's classification of such matter.
What are the three chemical molecules that make up the subunits of DNA?
a, b, c, or d?
Answer:
A
Explanation:
This is because those items are the actual required ones when it comes to building the molecule DNA.
DNA subunits, or nucleotides, are made up of a deoxyribose sugar, a phosphate group, and a nitrogenous base. There are four types of nucleotides in DNA, determined by four different bases: adenine, thymine, cytosine, and guanine.
Explanation:The three chemical molecules that make up the subunits of DNA are deoxyribose (a sugar), a phosphate group, and a nitrogenous base. These three components combine to form a nucleotide, which is the basic subunit of DNA. There are four different types of nucleotides in DNA, distinguished by their nitrogenous bases: adenine, thymine, cytosine, and guanine.
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What type of molecules can easily move through the phospholipid bilayer?
drawing of a spirogyra with label
The model shows parts of an atom.
What term identifies the parts of the
atom labeled with a Y?
Answer:
The majority of an atoms' mass comes from the protons and neutrons that make up its nucleus. Electrons are the least massive of an atom's constituent particles, with a mass of 9.11 x 10-31 kg and a size too small to be measured by current techniques.
HOPE THIS HELPED!!!!!!!!!!! XDDDDDD
Think back to the bean plant experiment you read
about earlier. The student's hypothesis stated, “If
bean plants are grown in green light, they will
grow taller, because bean plants are green."
Which of the following variables is the dependent
variable?
o the height of the bean plant
the type of light the bean plant receives -
green or natural sunlight
Answer:
The correct answer will be option- the height of the bean plant
Explanation:
A scientific experiment performed to test the hypothesis must contain three types of variables which are: dependent, independent and the constant variable.
The dependent variable is the variable which has to be tested and is dependent or directly influenced by the independent variable which in the given question is the height of the plants influenced by the amount of light.
Thus, the height of the bean plant is the correct answer.
Which best describes how fossil fuels form?
O
A. Natural gas is burned to form coal and oil.
O
B. Sunlight converts grass to coal and oil.
O
C. Farms are used to produce natural gas.
O
D. Decayed organisms are compressed underground,
Answer:
Decayed organisms are compressed underground
Explanation:
Fossils are the remains of organisms that are buried in a rock during sediment deposition over long geological time period. Since the bodies of these organisms is made of organic compounds, the high pressure of the overlying rock turns them into the hydrocarbons or fossil fuels. Therefore, option D is correct.
On the other hand, options A-C are incorrect because of following reasons:
Burning of natural gas doesn't form fossil fuel but CO2. In fact, natural gas is also a form of fossil fuel which is released from a rock hosting fossils.Sunlight doesn't convert grass to coal. In fact, sunlight cannot penetrate deeper into the geological rocks. Rather it will cause the weathering of surface sediments directly exposed to sunlight.Farms are not used to produce natural gas rather natural gas is produced inside a rock hosting bodies of living organisms.Answer:
Decayed organisms are compressed underground
Explanation:
Select the correct answer from each drop-down menu.
The genetic information that is passed from a parent to its offspring is found in molecules. Segments of these molecules, known as genes, code for the production of , which cause specific to be expressed.
The genetic information is found in DNA. Segments of DNA called genes code for proteins, which are responsible for expressing specific traits.
Explanation:The genetic information passed from a parent to its offspring is found in DNA molecules. The DNA segments known as genes are essentially the instructions for the production of proteins. These proteins, in turn, are responsible for the expression of specific traits. For example, a certain gene may code for the protein responsible for eye color, thus dictating whether a person will have brown, blue, or green eyes.
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The genetic information passed from parent to offspring is found in molecules called genes. Genes code for the production of proteins, which cause specific traits to be expressed.
Explanation:Genetic Information and Inheritance
The genetic information that is passed from a parent to its offspring is found in molecules. Segments of these molecules, known as genes, code for the production of proteins, which cause specific traits to be expressed.
For example, in humans, the DNA molecules carry the genetic information in their sequence of nucleotides. Genes, which are specific segments of DNA, carry the instructions for making proteins. These proteins determine physical and physiological traits, such as eye color, blood type, and height.
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list the atoms that would be found in a molecule of CO2
Answer:
Explanation:
A molecule of the compound carbon dioxide contains one atom of the element carbon and two atoms of the element oxygen. Each oxygen atom shares a double bond with the carbon atom.
Which organism is able to cause an infection?
(A) bacteria
(B) skin cell
(C) white blood cell
(D) red blood cell
The Answer Is Bacteria
Answer: Bacteria
Explanation: If you think about it bacteria is in a good way and a bad way to help and destroy the human organism
Where do you think
this heat lamp is being used?
Answer:
umm what heat lamp?
and ima just say its being used to heat sum like maybe food or sum xD
Explanation:
Which of these best represents a fatty-acid molecule?
Option C is the correct answer.
A fatty-acid molecule consists of a long chain of hydrocarbons with a carboxyl group at one end. It is a structural component of fats and oils. Saturated fatty acids have straight chains, while unsaturated fatty acids have bent chains due to the presence of double bonds.
A fatty-acid molecule consists of a long chain of hydrocarbons with a carboxyl group at one end. It is a structural component of fats and oils. The number of carbons in a fatty acid can range from 4 to 36, with common ones having 12-18 carbons. Saturated fatty acids have straight chains, while unsaturated fatty acids have bent chains due to the presence of double bonds. Examples of fatty acids include palmitic acid ([tex]C_{16}H_{32}O_{2}[/tex]) and oleic acid ([tex]C_{18}H_{34}O_{2}[/tex]).
Silicon dioxide forms the cell walls of _____.
Answer:
Diatoms I believe.
Explanation:
The diatoms have a cell wall which is made up of silicon dioxide.
Explanation:Diatoms are algal species which exist on houses made of glass. They are the main living being on the planet with cell wall composed of opaline silica, a component of silicon dioxide. Diatoms have chlorophyll a and c that gather vitality from the sun and transform it into compound vitality through photosynthesis.
Through carbon obsession, diatoms expel carbon dioxide [tex](CO_2)[/tex] from the environment. The [tex]CO_2[/tex] is changed over to natural carbon as sugar, and oxygen [tex](O_2)[/tex] is discharged. We inhale the oxygen that diatoms discharge.
A cell with few energy needs would most likely contain a small number of ___________.?
Answer:
Mitochondria
Explanation:
Mitochondria is the site of cellular respiration which produces energy. A cell with few energy needs would therefore contain a small number of this organelle.
A cell with few energy needs would most likely contain a small number of Mitochondria, as it is the site of cellular respiration and produces energy
What is the role of mitochondria in cell ?Mitochondria are called as the powerhouses of the cell as they involve in the energy production process from the nutrient we took in the form of food.
They generate the energy in the form of adenosine triphosphate (ATP) mostly, the energy currency of the cell.
It also involved cell signaling between cells and cell death, known as apoptosis.
It has outer membrane layer only Small molecules can pass freely through it, it contain proteins called porins called channels that allow proteins to cross.
Intermembrane space is present between inner and outer membranes.
Inner membrane carry other proteins but no porins and it is impermeable to most molecules.
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How does the flu affect businesses and governments? Could it affect residents' access to certain resources?
The flu is a very dangerous disease that is thankfully not anymore in circulation. When people working in government jobs are affected by this disease it delays the time they come to work and therefore the country's business goes down.
Also a large amount of money is spent by the government to cure this disease and the government has to focus on the eradication of these diseases and waste time.
When infected people use some resources and many citizens use the same resource then a large number of people could get affected due to this and therefore the country's economy is reduced with the resources.
Hope it helps you!
A virus from the flu can mess up the world.
Further ExplanationThe flu is an infectious disease caused by a virus.
The flu is often considered the common cold because it has the same symptoms. In fact, severe flu can be life-threatening. A person can catch a cold by accidentally inhaling saliva in the air, which is released by the patient when sneezing or coughing. In addition, touching the mouth or nose after handling objects that are exposed to saliva splashes, can also be a means of transmission of the flu virus. If the flu virus spreads widely it can cause public chaos, this chaos will create panic everywhere so that it disrupts the activities around it. This can affect business and government. Gradually, the company's business may decline due to chaos, if a city is killed by a virus, the existing business enterprise will be paralyzed. The government is also experiencing impacts such as dealing with the spread of serious viruses and spending more to deal with viruses, the attention of government work programs will be slightly disrupted. Residents who are isolated because of the spread of the virus must also be unable to go anywhere so that their activities are also paralyzed. If this spreads to other countries, there will be global-scale chaos which can certainly trigger divisions. If not treated very seriously, the virus can become an outbreak that results in paralysis of life.
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A scientist is attempting to create a treatment for asthma. She knows that in people with asthma, their airways can become inflamed, or swollen, making it difficult to breathe. She knows that there are many genes responsible for this inflammation. She asks her team for ideas on how to treat asthma. You think RNA interference would work. Explain to her what RNA interference would do and the effect it would have on a patient with asthma.
HHHHHHHHHEEEEEEEEEELLLLLLLLLLLPPPPPPPP MMMMMMMMMMMMEEEEEEEEEE!
Answer:
RNA interference is the process of silencing the specific sequences of mRNA through siRNA. RNA interference process can be used to treat many diseases.
Treating asthma is the new approach to treat it through gene silencing as some genes are responsible for causing inflammation and swelling of the airways or respiratory tract.
RNAi to treat the diseases are very specific as the siRNA forms RISC which binds to the mRNA to slice the gene and deactivate the functioning of the gene.
RNA interference (RNAi) is a biological process in which RNA molecules inhibit gene expression, typically by causing the degradation of specific mRNA molecules.
Here's how RNAi could potentially be used as a treatment for asthma:
1. Identification of Target Genes: The first step would be to identify the genes that are responsible for the inflammation in the airways of asthma patients. These genes code for proteins that may contribute to the inflammatory response.
2. Design of Small Interfering RNA (siRNA): Once the target genes are identified, small interfering RNA (siRNA) molecules can be designed. These siRNAs are complementary to the mRNA sequences of the target genes.
3. Introduction of siRNA: The siRNA is introduced into the cells of the patient's airways. This can be done using various delivery methods, such as viral vectors, lipid nanoparticles, or inhalation of siRNA formulations.
4. RNAi Mechanism: Inside the cell, the siRNA binds to the RNA-induced silencing complex (RISC). The RISC is guided by the siRNA to the target mRNA, leading to the cleavage and degradation of the mRNA by the Argonaute protein, a component of RISC.
5. Gene Silencing: The degradation of the target mRNA prevents it from being translated into the corresponding protein, effectively silencing the gene. This reduces the production of the inflammatory proteins, which should decrease the inflammation in the airways.
6. Therapeutic Effect: With the reduction of inflammation, the airways become less swollen, and breathing becomes easier for the patient. This could potentially alleviate the symptoms of asthma and reduce the frequency or severity of asthma attacks.
7. Safety and Specificity: One of the advantages of RNAi is its high specificity, which reduces the likelihood of off-target effects. However, the safety and efficacy of this approach would need to be thoroughly evaluated through preclinical and clinical trials.
8. Duration of Treatment: The duration of the RNAi effect depends on the turnover rate of the target cells and the stability of the siRNA. Repeated administrations or sustained delivery systems may be required to maintain therapeutic effects.
In summary, RNA interference offers a potential therapeutic strategy for asthma by specifically targeting and silencing the genes responsible for airway inflammation. This could lead to a reduction in inflammation and an improvement in respiratory function for patients with asthma. However, the practical application of RNAi in treating asthma would require careful consideration of the delivery method, potential side effects, and long-term effectiveness.
Question 2
A carbohydrate energy storage molecule found in animal liver and muscle cells is:
Answer:
Glycogen
Explanation:
Glycogen is a storage polysaccharide, which means it is made up of a chain of many monosaccharides. It is a storage polysaccharide because it is stored in the liver and muscle cells to be used as a source of energy later on.
Our body uses glucose for energy, but when it is not used up, it is stored in the liver and made into glycogen. When the body needs an extra boost of energy, it will use glycogen, especially when there is no other source like glucose, around.
A carbohydrate energy storage molecule found in animal liver and muscle cells is Glycogen
What is Glycogen?The stored form of glucose, known as glycogen, is composed of several linked glucose molecules. the body's major source of energy is glucose (sugar). It originates from the carbs, a macronutrient found in some of the foods and beverages one consume.
As glycogen is a storage polysaccharide, it is composed of a long chain of monosaccharides. Because it is stored in the liver and muscle cells to be used as an energy source later, it is referred to as a storage polysaccharide.
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Which type of cell is pictured on the right?
Prokaryotic cell is the type of cell that is pictured on the right.
The prokaryotic cell is characterized by not having a cell nucleus, therefore its ribosomes are smaller and its genetic material simpler.
That is, the main characteristic of prokaryotic cells is that they present their genetic material dispersed in the cytoplasm, in an area called the nucleoid.
The cell wall is the tough layer that gives the cell a defined shape and an additional layer of protection.They present a flagellum, a whip-shaped organelle used to mobilize the cell, and a capsule formed by organic polymers that is deposited outside the cell wall. They have plasmids that are forms of non-chromosomal DNA, circular in shape that gives them essential characteristics for greater adaptability to the environment.Therefore, we can conclude that prokaryotic cell is the type of cell that is pictured on the right, they present their genetic material dispersed in the cytoplasm (nucleoid).
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Answer: B. prokaryotic
Explanation:
The heavier elements in the universe were formed by
A. a series of star cycles
B. the sun
C. force of gravity
D. black holes
E. the Big Bang
Answer: A. A series of star cycles
The heavier elements in the universe were formed by " a series of star cycles".
What are heavier elements?An element with such an atomic number of more than 92 is referred to as a heavy element.
What is star ?
In astronomy, a star would be a brilliant plasma spheroid that is kept it together with gravity.
Later, in some kind of a process referred to as stellar nucleosynthesis, the heavier elements became produced from hydrogen. This would be a prolonged process whereby hydrogen but also helium are merged together in the stars, which acted as enormous furnaces, at various points of their lives.
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What would happen if there is no connective tissue
Answer:
If there were no connective tissue in your body, you would not be able to move your muscles or hold balance. Connective tissues also help carry out the task of storing energy and insulating the body. They are mostly made up of Ground substance, Fiber, and Cells.
Explanation:
Answer:If there are no connective tissues in your body, the person will not be able to walk or lift anything. These tissues helps your each and every body part to be in contact with each other like muscle fibers, bones tendons, ligaments, etc
Explanation:
Which term is a type of symbiosis? mimicry diversity camouflage mutualism
Answer:
Mutualism
Explanation:
It is the only one where species interact.
Answer: Mutualism
Explanation:
Mutualism can be defined as a type of symbiotic relationship in which there is an interaction between the two organism.
Two of the organism gets benefit from each other. One organism can live on the other organism for shelter and the it can help the other organism obtaining food.
The best example of mutalism can be seen in the nitrogen fixing bacteria in the nodules of the plant.