How would an increase in nest sites affect a population of pigeons?

What is the importantence of the carbon and nitretan cycles in the environment

Can a trait be both polygenic and have multiple alleles? explain why or why not.

The more rapidly sedimentation occurs, the more likely it is that the remains will successfully form a fossil. as sedimentation continues, what happens to the amount of weight settling onto the organism? stays the same increases decreases cuts in half