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3 years ago

Select all that apply.

Biology

2 answers:

MissTica3 years ago

7 0

Answer:

Genetic variation occurs.

Mutations are not copied over and over again.

Explanation:

Meiosis is a type of cell division that adds genetic variations in the progeny through the process of crossing over. These genetic variations impart a survival advantage to the population and prevent species extinction under unfavorable conditions. Since crossing over during meiosis produces new gene combinations, meiosis does not always allow transmission of mutation to the progeny. In this way, it helps to get rid of harmful mutations.

Anestetic [448]3 years ago

5 0

Genetic variation occurs.
Mutations are not copied over and over again.

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HELP! ASAP! Please UNDERLINE the dependent variable and BOLD the independent variable FOR EACH.

zepelin [54]

Answer:

1. The height of bean plants depends on the amount of water they recieve.

2. The higher the temerature of the air in the oven, the (speed of which) a cake will bake.

3. Lemon trees receiving the most water produced the most lemons (amount)

4. An investigation found that more bushels of potatoes were produced when the soil was fertalized (amount) more.

5. The amount of pollution produces by cars was measured for cars using gasoline containing different amounts of lead.

Explanation:

The independent variable is what you change and the dependent variable is what is being measured. It is like cause and effect.

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3 years ago

What can be described as alternate forms of a particular gene?

saul85 [17]

Chromatids thats your answer to that question.

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kumpel [21]

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4 years ago

A tissue sampler that is being used for a medical procedure is placed inside a saline solution. Unknown to the medical team, the

solong [7]

Answer: Water will leave the cell and the cell will shrink.

Explanation:

Osmosis is the net movement of water from an area of low to high concentration of solutes through a semipermeable membrane. If none of the compartments contains solutes, then the water moves in either direction between the compartments. However, if we add a solute to one of the compartments, this will affect the probability of water molecules leaving that compartment and moving into the other compartment. The ability of water to move into or out of a cell is called tonicity. The tonicity of a solution is related to its osmolarity, which is the total concentration of all the solutes in the solution. A solution with low osmolarity has few solute particles per liter of solution, whereas a solution with high osmolarity has many solute particles per liter of solution. When two solutions with different osmolarities are separated by a membrane permeable to water but not permeable to solutes, water diffuses from the side with lower osmolarity to the side with higher osmolarity. So, solutions can be:

Hypotonic: The extracellular fluid has a lower osmolarity than the fluid inside the cell, it is hypotonic with respect to the cell, and the net flow of water will be into the cell.
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3 years ago

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masha68 [24]

#1) What ecosystem is described in the paragraph above?

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I hope it helps, Regards.

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