The answer would be the hardening of the myelin sheath. Multiple sclerosis is a chronic and inflammatory disease affecting the Central Nervous System and can cause a lot of symptoms like sensation changes, visual problems, severe fatigue and muscle weakness.
Answer:
gene flow is the transfer of genetic variation from one population to another.
option D
If hunted and sold, animals will have a lower chance of reproducing apart from not being there themselves, decreasing their population.
Having less species inhabiting an area, means less food for some predators. Which means that competition will occur among preators since food will be scarce.
Answer:

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Answer:
E. 1/600
Explanation:
Hint:
The probability of fixation of a new neutral mutation is 1/(2N)
Given N as 300
= 1/(2×300)
=1/600
Therefore,
1/600 gives a sure fixation of one allele from the large population
When cells reach their size limitations one of two things will happen: they will either stop growing and split into two separate cells. Cell division can be both good and bad.