What type of relationship exists between two organisms if both of them benefit from the relationship? a. commensalism b. competition c. mutualism d. parasitism

Place the steps tor the formation of the enzyme pepsinogen in correct order

How does natural selection change thephenotypes within a population over time?

1. fold your hands together so your thumbs cross over ,and look at your thumbs. which thumb feels most "comfortable" on top is actually controlled by a gene. the left thumb folding over the right thumb is a domi