Answer:
Adaptive alleles that are beneficial in one environment can be deleterious in another, due to selective pressures.
Explanation:
just took the quiz.
Algae is a primary producer like plants. I hope this helps
It because they give us oxygen and without oxygen we would all die from oxygen deprivation.
the process that gives us oxygen is photosynthesis
<span />
the skin covering the human body consists of 2 layers.
