Your answer is A. Midbrain, pons, and medulla.
A change in or the process of changing, e.g. nature, form or quality.
Mutations are caused<span><span>DNA fails to copy accurately
Most of the mutations that we think matter to evolution are "naturally-occurring." For example, when a cell divides, it makes a copy of its DNA — and sometimes the copy is not quite perfect. That small difference from the original DNA sequence is a mutation.<span>
</span></span><span>External influences can create mutations
Mutations can also be caused by exposure to specific chemicals or radiation. These agents cause the DNA to break down. This is not necessarily unnatural — even in the most isolated and pristine environments, DNA breaks down. Nevertheless, when the cell repairs the DNA, it might not do a perfect job of the repair. So the cell would end up with DNA slightly different than the original DNA and hence, a mutation. hope that helped
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Tundra is flat, barren-like land whereas a tropical rainforest is a vast, more complex environment. Due to this, tundra provides less habitats for organisms to live in than the rainforest. This means that a greater variety of species are able to co-exist in the rainforest than in tundra, so species diversity is greater.
Answer:
Sharks, whales, and dolphins share similar features such as body shape and the position of fins. However, sharks have gills for breathing,
The answer is C....Plants take carbon dioxide from the atmosphere during photosynthesis to produce water, oxygen, and energy that is then stored in sugars.
