20. Thinking about how traits are inherited, how would you explain the close similarities between the make-up of the oxygen-carrying molecule hemoglobin in organisms as diverse as birds,
horses, gorillas, and humans?

hemoglobin likely evolved in a common ancestor of all of these organisms (a homology)

or it is a good system that evolved separately (an analogy or convergence)

Explanation:

any abiotic or biotic factor in an ecosystem that causes a population's size to slow or decrease is a limiting factor.

the answer is c.

by: nicholas dooley