How long is it till you can message people privately? I am ranked Ambitious yet I can't

Agene pool: a) is the collection of all the alleles found in a single species b) is the collection of all the alleles found in a single population c) is the collection of all the chromosomes found in a single population d) is the collection of genes in a species that allow the individuals to swim

49 ! how are energy cycles and growth cycles related?

The part of the eye that closes and opens to let light in is .