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xeze [42]
3 years ago
10

Biologists sometimes say that “natural selection depends on the specific environment where a species lives.” What does this stat

ement mean?
Biology
1 answer:
denis23 [38]3 years ago
8 0

Answer: Natural selection is one of the forces of evolution and the enviroment where the species lives is the selection agent. For example, suppose a mosquitoes population in a environment free from insecticides, in this environment there's a high frequency of non-resistant mosquitoes because the environment is not  exerting any pressure on the resistence trait. But when the environment changes and we use a insecticide upon the mosquitoes population, the populations changes because the non-resistant ones die but those resistant survive and beggin to reproduce more effectively. That's natural selection, differences in survival and reproduction between individuals with different phenotypes (traits) and this differences depend of environmental changes.

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In what phase of mitosis do the centrioles separate?
Olegator [25]

Answer:

Prophase

Explanation:

During prophase, chromatin condenses into chromosomes, and the nuclear envelope, or membrane, breaks down. In animal cells, the centrioles near the nucleus begin to separate and move to opposite poles (sides) of the cell.

4 0
3 years ago
Read 2 more answers
What is the definition of “migrate” as used in the following sentence?
Sonbull [250]

Answer:

The Correct Answer Would Be D.

Explanation:

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8 0
3 years ago
A massive bluegill fish kill was observed in a lake near a power plant during the winter months. It was determined that the plan
Savatey [412]

Answer:

Option B

Explanation:

Option D is incorrect, as increased photosynthesis would increase oxygen supply present, not carbon dioxide supply.

Option C is incorrect, as increased decomposition would increase carbon dioxide released and oxygen present is reduced, not increased.

Option A is unlikely as if this were the case, increased oxygen levels would enable bluegill fish to survive as well.

8 0
3 years ago
What condition is required for fermentation to occur? A. When oxygen levels within a cell are too low for aerobic respiration B.
Leokris [45]

Answer:

A. When oxygen levels within a cell are too low for aerobic respiration

Explanation:

Fermentation is a chemical or metabolic process that occurs in organism, when a carbohydrate such as glucose is metabolized or converted to an alcohol anaerobically (absence of oxygen).

When an organism lacks oxygen within the cell, aerobic respiration would be halted, hence pyruvate produced from glucose further undergoes fermentation anaerobically.

Organisms like lactic acid bacteria and yeast carry out fermentation. The process of fermentation is widely used in food industries, such as in brewing of wine or manufacture of yogurt.

6 0
3 years ago
Humans have one of two types of hairlines on their foreheads. The "V" shaped hairline refers to a trait called Widow's Peak (W)
Yuliya22 [10]

Answer:

all of their children would have a widow's peak hairline

Explanation:

Chris's genotype consists of two dominant widow's peak genes and Janet has two recessive widow's peak genes so the each of the children will inherit one dominant and one recessive widow's peak genes from each parent, making them exhibit "v" shaped hairline and also being carriers for straight hairline.

8 0
2 years ago
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