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Imagine a population of mice that is either long-tailed or short-tailed. If a forest fire happened to
kill most of the mice with short-tails, the population of long-tailed mice would increase. This
evolution would be contributed to

selective breeding
genetic engineering
human impact
environmental factors

environmental factors

Explanation:

this is because forest fires are usually because of the rise in temerature

selective breeding

Explanation:

because only long tailed mice population dominating in forest, as short tailed mice are cullied in forest.

thrombocytopenia, which is a deficiency in blood platelets, can cause bleeding and bruising in the dermis similar to senile purpura. other possible causes include: exposure to ultraviolet rays and aging skin are common causes of senile purpura. senile purpura may also be a sign of collagen loss in the skin and bones.