How does reproduction in humans compare to reproduction and other animals such as fish, birds and reptiles?
Answer:
It compares because all of them reproduce the same way with varied offspring instead of identical.
why is it important to use weakened virus in vaccine
Answer:
It is important for you to use a weakened virus in the vaccine so once injected in your system not only is your body learning to FIGHT the virus but you will become immune to it once your body has practically gotten a taste of it. for example some anti venom antitodes use the ACTUAL venom aswell its vital in vaccines.
Explanation:
how can you prepare a balanced ration for pigs from locally available ingredients ?
Answer: Feed your pigs that are being weaned off of their mother's milk, a special mix of food until they are about 10 to 12 weeks old. Then create a feed mix that is comprised of 76 percent corn, 12 percent skim milk powder, 6 percent soybean meal, 6 percent calcium and protein, and also 0.2 percent salt.
Explanation:
Under dehydration circumstances in the winter, stomata may close to reduce water loss for the tree. Predict what would result from the closing of stomata. es ) A This would provide more water, increasing photosynthesis. B) This would also stop gas exchange and further limit photosynthesis. This would trap the oxygen produced in photosynthesis and kill the plant. D) This would help the needles gather more sunlight energy, increasing photosynthesis. Energy Transfer
Answer:this would also stop gas exchange and further limit photosynthesis
Explanation: did this on USA test prep and got it right
This would also stop gas exchange and further limit photosynthesis. Therefore, option B is correct.
What is the mechanism of opening and closing of stomata?The content of cell sap is reduced as a result of the conversion of the organic acids into starch. This causes water to exit hard cells, and a decline in their turgor causes the stomata to close. Stomata therefore open throughout the day and close at night.
The pH of the guard cells controls stomatal opening, according to the starch sugar interconversion theory of stomatal opening. In neutral or alkaline pH, stomata open. When the guard cells are open during the day and closed at night, they contain starch during the day.
Under dehydration circumstances in the winter, stomata may close to reduce water loss for the tree. This would also stop gas exchange and further limit photosynthesis. Therefore, option B is correct.
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a
9. It is difficult to burn a heap of green leaves but dry leaves catch fire easily.
Explain.
Answer:
Green leaves have water wich makes them hard to burn
Explanation:
Dry leaves have no relaining water in them, whick makes them very succeptible to fire, whereas the green leaves are green and therefore still have water in them. This presence of water makes them more resistant to fire.
Which statement describes how basic DNA technology is used to construct recombinant DNA molecules? (10 points)
A. Scientists use a gel-filled electrical chamber during gel electrophoresis to isolate DNA fragments.
B. Scientists use restriction enzymes to cut DNA molecules and ligation to paste DNA fragments together.
C. Scientists use heat and bacterial
transformation to add novel DNA into bacterial cells.
D. Scientists use high temperatures to separate strands of DNA molecules during polymerase chain reaction.
The statement 'Scientists use restriction enzymes to cut DNA molecules and ligation to paste DNA fragments together' describes the construction of recombinant DNA molecules. This technology is called recombinant DNA.
Recombinant DNA is a genetic engineering approach by which scientists uses specific enzymes to cut and paste nucleotide (DNA) target sequences of interest.
The enzymes that recognize and cut DNA are called restriction enzymes, while enzymes that ligate DNA fragments are called ligase enzymes.
Recombinant nucleotide sequences are placed into specific vectors (e.g., a plasmid) that transport the DNA in a host cell in where this sequence is expressed as protein.
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The processes by which a molecule can be extracted and processes by which a molecule can be isolated
Answer:
Extraction is the first step to separate the desired natural products from the raw materials.
solvent extraction, distillation method, pressing and sublimation
Isolation can be achieved from polyherbal formulation but it will be rather difficult and would involve complex purification steps .
Explanation:
Have a great day!
The sentences below contain one advantage statement and one disadvantage statement. To form a strong basis for debate, both statements must be true and both statements must make valid points.
Which statements best debate the advantages and disadvantages of using renewable energy sources, such as hydropower, solar energy, or geothermal resources?
Choose the correct answer.
Solar energy is extremely inexpensive to harvest. Solar energy is available everywhere on the planet.
The use of geothermal energy produces enormous amounts of pollution. The technology required to collect thermal energy is relatively inexpensive.
Geothermal energy is more renewable than solar energy. Hydropower can change flowing water from a renewable energy resource to a nonrenewable resource.
The use of hydropower requires the construction of dams that change the ecology of the river. Hydropower will be available as long as the river continues to flow.
Answer:
maybe solar energy
Explanation:
Why don't people's cells starve from lack of glucose while they are fasting
What aspect of a muscle cell
allows movement in the body?
A. its shape is short and blunt
B. fibers within the cell move back and forth
allowing the cell to stretch and shrink
C. there are no organelles which allows it to
move easier
Answer:
B
Explanation:
Nearly all movement in the body is the result of muscle contraction.
Which cell would have a better chance for survival, one that is 1×1×1 cm or one that is 4×4×4 cm?
Answer:
which cell would have a better chance for survival that is 4*4*4cm
Axons insulated by a(n) _____ are able to conduct impulses faster that those not so insulated.
Answer:
Much like the insulation around the wires in electrical systems, glial cells form a membraneous sheath surrounding axons called myelin, thereby insulating the axon. This myelination, as it is called, can greatly increase the speed of signals transmitted between neurons (known as action potentials).
Explanation:
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What is the difference between diffusion and osmosis?
What makes a membrane semipermeable?
What characteristics of a molecule affect whether it can pass through the plasma membrane of a cell?
In the simulation, when protein molecules were evenly distributed on both sides of the membrane, was the solution isotonic, hypertonic, or hypotonic?
Which direction was water flowing?
In the simulation, when protein molecules were more highly concentrated on the inside of the cell than outside of the cell, was the solution isotonic, hypertonic, or hypotonic?
Which direction was water flowing?
Why is it important that the plasma membrane surrounding cells is semipermeable?
What would happen if it were not semipermeable?
1) Diffusion : Is the movement of molecules / ions from a region of higher to lower concentration. It may or may not occur across a semi permeable membrane.
In diffusion there is no challenge involved as it is along the concentration gradient, but in active transport movement of molecules occur against concentration gradient ie; from lower to higher concentration.
2) For active transport, energy is vital for movement, in this case protein molecules function as molecular pumps to enable the cell accumulate glucose/ions, against concentration gradient. Here metabolic energy ATP is required.
3)Facilitated diffusion is a type of passive transport in which ions/molecules cross the semi permeable membrane because permeases present in the membrane facilitate the transport.
Like simple diffusion facilitated diffusion doesn't require metabolic energy and simply occurs across the concentration gradient.
4) Osmosis : is movement of water from hypotonic solution (lower concentration) to hypertonic solution (higher concentration) through a semi permeable membrane.
The cell membrane being permeable to water allows to and from movement of water molecules along the concentration gradient.
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Diffusion is the process of a substance moving from an area of high concentration to an area of lower concentration. Osmosis is a type of diffusion where water moves across a semipermeable membrane still from an area of high concentration of water to an area of lower concentration of water. This corresponds to water moving from an area with a low concentration of solute to an area with a higher concentration of solute.
A semipermeable membrane allows some substances to pass through it.
The plasma membrane of a cell allows small uncharged molecules to pass through it, but not large molecules and not charged ions.
The protein molecules were evenly distributed on both sides of the membrane, so this solution was isotonic.
In an isotonic solution, water moves both in and out of the cell, which was observed in the simulation.
The protein molecules were more highly concentrated on the inside of the cell, so this solution was hypotonic.
In hypotonic solutions, water moves into the cell to help dissolve the higher amount of solute inside the cell, which was observed in the simulation.
A semipermeable cell membrane is important to allow some molecules, like proteins, to be more highly concentrated inside the cell than outside the cell. If the cell membrane were permeable, the molecules on the inside of the cell would exit the cell and be evenly distributed in the cell and in its environment.
If the cell membrane were not permeable at all, the cell would not be able to receive nutrients from its environment.
Diffusion and osmosis has one difference which is the presence of semi-permeable membrane.
What is the difference between diffusion and osmosis?Diffusion is the movement of particles from an area of higher concentration to one of lower concentration while on the other hand, osmosis is the movement of particles from a semipermeable membrane.
Cell membrane is selectively permeable which only allows some molecules inside the cell because of its structure. So we can conclude that diffusion and osmosis has one difference which is the presence of semi-permeable membrane.
When protein molecules were evenly distributed on both sides of the membrane, the solution will be isotonic because of the same quantity on both sided. There is no movement of water in the body.
When protein molecules were more highly concentrated on the inside of the cell than outside of the cell, the solution will be hypotonic because of the less amount of water in the body.
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Answer:
- 1). Diffusion is the process of a substance moving from an area of high concentration to an area of lower concentration. Osmosis is a type of diffusion where water moves across a semipermeable membrane still from an area of high concentration of water to an area of lower concentration of water. This corresponds to water moving from an area with a low concentration of solute to an area with a higher concentration of solute.
- 2).
a). A semipermeable membrane allows some substances to pass through it.
b). The plasma membrane of a cell allows small uncharged molecules to pass through it, but not large molecules and not charged ions.
- 3).
a). The protein molecules were evenly distributed on both sides of the membrane, so this solution was isotonic.
b). In an isotonic solution, water moves both in and out of the cell, which was observed in the simulation.
- 4).
a). The protein molecules were more highly concentrated on the inside of the cell, so this solution was hypotonic.
b). In hypotonic solutions, water moves into the cell to help dissolve the higher amount of solute inside the cell, which was observed in the simulation.
- 5).
a). A semipermeable cell membrane is important to allow some molecules, like proteins, to be more highly concentrated inside the cell than outside the cell. If the cell membrane were permeable, the molecules on the inside of the cell would exit the cell and be evenly distributed in the cell and in its environment.
b). If the cell membrane were not permeable at all, the cell would not be able to receive nutrients from its environment.
In which location would light travel at the highest speed?
O A. In a swimming pool
B. Within a glass fiber
O C. Within a diamond
O D. Between the Sun and Earth
Answer:
D. Between the Sun and Earth
Explanation:
It travels fastest in vacuum So I’m making an educated gas and saying it’s D I could be wrong though.
Answer:
D. Between the Sun and Earth
Explanation:
quiz
See attachment, please - Biology160
Which of the following is the reason
that viruses aren't considered alive?
A. they can grow and develop on their own
B. they can metabolize
C. they can't reproduce on their own
D. they can't move on their own
Answer:
they can't reproduce
Explanation:
Viruses rely on the cells of other organisms to survive and reproduce, because they can't capture or store energy themselves. In other words they cannot function outside a host organism, which is why they are often regarded as non living thing
which involves transport proteins?
A. Osmosis
B. Diffusion
C. Active transport
D. Passive Transport
Answer:
C
Explanation:
Hey, I need help with these questions please:
Answer:
on the human body
Explanation:
i think.....
Global ______ may result in the melting of glaciers, the inundation of wetlands, and the loss of many species that cannot migrate or adapt to new habitats.
Answer:
warming
Explanation:
Answer:
GLOBAL WARMING
Explanation:
global warming is warming up the earth which is causing a lot of destruction. we will all probably get flooded one day
Which of the following best describes the carbon cycle as a whole?
Choose 1 answer:
Choose 1 answer:
(Choice A)
A
the flow of carbon through the trophic levels of an ecosystem
(Choice B)
B
the flow of carbon between inorganic and organic sources in the environment
(Choice C)
C
the flow of carbon from rocks on land to oceans during weathering
The flow of carbon between inorganic and organic sources in the environment is best description of the carbon cycle as a whole. Thus, option B is correct.
What is carbon cycle ?It is the process in which carbon compounds are interchanged among the biosphere.
For example the elemental form of carbon such as diamond and graphite in a combined state are mostly found as carbonates and as carbon dioxide gas.
It act as a blanket over our earth, by balancing the energy and also absorb sun's long wave length radiation.
It also involve in plant photosynthesis, bioaccumulation of carbon occur in animal body by consuming plant material, after the death of the animal it can decomposed and carbon is released back into the atmosphere.
The carbon which is not released back will form fossil fuels.
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what is the antilog calculation for a measurement of 3.85cm
Answer:
bbbbbbbbb
Explanation:
hggggggg
which is colder 0 C or 32 F
Answer:
0°C × 9/5) + 32 = 32°F
Explanation:
above formula
through which material would you expect sound waves to move fastest
Answer:
Solids
Explanation:
Sound travels fastest through solids. This is because molecules in a solid medium are much closer together than those in a liquid or gas, allowing sound waves to travel more quickly through it. In fact, sound waves travel over 17 times faster through steel than through air.
Choose the correct order for the formation of a recombinant organism and the expresssion of the
desired product.
I’m stuck on this one any advice?
The order for rDNA is to identify a target gene, select a plasmid, use a restriction enzyme, gene insertion, use ligase, introduce the recombinant DNA and detect recombinant cells. rDNA involves genetic recombination.
Recombinant DNA (rDNA) technologies are used in molecular biology laboratories to create chimeric DNA molecules containing nucleotide sequences from different species.
Recombinant DNA techniques can be used to identify and sequence genes, as well as to discover gene function.
The sequential steps of rDNA technologies are as follow:
Identify a gene of interest.Select a DNA plasmid to be used.Use restriction enzymes to cleave the plasmid DNA.Introduce the gene of interest in the plasmid.Use ligase enzymes to join both nucleotide sequences.Introduce the recombinant DNA molecule into the host cell.Detect and replicate the cells containing the desired recombinant DNA molecule.Learn more in:
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How can fat loss and cellular respiration help if you eat more than 6-9 teaspoons of sugar a day?
Answer:
For those who eat a well-balanced diet and have no metabolic disorders, excess dietary carbohydrates are converted by the liver into complex chains of glucose called glycogen. Glycogen is stored in liver and muscle cells and is a secondary source of energy to freely circulating blood glucose.
what is ecology and the functions
Answer:
It is the study of many things but mainly life process, interactions and adaptations. (The sucession development in the ecosystem)
Explanation:
Hope this helps ^^
Need questions 2-11 done pls
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In mitosis, the daughter cells have the same number of chromosomes as the parent cell, while in meiosis, the daughter cells have half the number of chromosomes as the parent.meiosis gives rise to four unique daughter cells, each of which has half the number of chromosomes as the parent cell.A haploid cell is a germ cell or reproductive cell-like egg or sperm that has a single set of chromosomes and it is represented by n. A diploid cell is a bodily cell or somatic cell that has two sets of chromosomes( one set from the paternal line and one set from the maternal line)From a diploid germ cell 2n =24 double stranded chromosomes, meiosis will produce four gamete haploid cells n =12 single stranded chromosomes.ovumspermGenetic variation is increased by meiosis Because of recombination and independent assortment in meiosis, each gamete contains a different set of DNA. filter that blocks out unwanted frequencies to a speaker or group of speakersdescribes how different genes independently separate from one another when reproductive cells develop. I d k the last one sorryhope it helps[tex] \: \: \: \: [/tex]
Choose all the answers that apply.
Biomass includes _____.
animal waste
paper trash
animals
sunlight
plants
The DNA double helix is antiparallel. This means that the two strands…
Answer:
d
Explanation:
antiparallel is like one strand starts with 5' prime and ends with 3' prime and it's complimentary strand is the the opposite with 3' prime on top and 5' prime down
Deer are herbivores. What effects do you think a high deer population would have on Wesselman Woods?
Answer & Explanation:
Overly large population of any herbivore = them eating large amounts of any type of vegetation. Which means that for the woods there are less grasses/vegetation and it will end up causing other animals to starve therefor messing with the food chain.
Is that what you're lookin for? :)
A high deer population can have several negative effects on Wesselman Woods. These effects include a decrease in plant diversity, damage to trees, increased erosion, and a high risk of disease.
Decreased plant diversity: Deer are selective feeders, and they prefer to eat certain types of plants. This can lead to a decrease in plant diversity in the forest, as deer will eat the most palatable plants and leave the less palatable ones.
Damage to trees: Deer will browse on young trees, which can stunt their growth or even kill them. This can lead to a decrease in the number of mature trees in the forest, which can hurt the forest's overall health.
Increased erosion: Deer can trample on the ground, which can lead to increased erosion. This can damage the forest's soil and make it more difficult for plants to grow.
Increased risk of disease: Deer can carry diseases that can be transmitted to humans and other animals. A high deer population can increase the risk of these diseases spreading.
In addition to these direct effects, a high deer population can also have indirect effects on Wesselman Woods. For example, a decrease in plant diversity can lead to a decrease in the number of insects and other animals that depend on those plants. This can have a cascading effect on the entire ecosystem.
It is important to manage the deer population in Wesselman Woods to prevent these negative effects. This can be done through a variety of methods, such as hunting, fencing, and altering the forest's habitat.
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