Crossing-over can happen during which stage?
prophase ii
prophase i
metaphase i
none of the above

Describe how a student should adjust the microscope to see the cells on a slide more clearly?

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.

Stephen is a student who wants to test his knowledge of medical terminology. which option could he use?