How do u use alleles in a sentence

Identify the composition of oceanic and continental crystal rocks.in a model of earth’s interior,where would these rocks appear?

In "the man in the water," what was the remarkable occurrence that rosenblatt reported?

Which best describes this behavior? it is beneficial only to the males that do not fertilize eggs. it is beneficial only to the female workers that are not fertilized. it is beneficial to each one of the individual colony members. it is beneficial to the whole species, but not to all of the individual members.