Compare and contrast defined roles and cooperative roles in animal behavior.

Explain how fossils scientists make discoveries about the lives of organisms and about how environments have changed over time. plz hurry up it time

10. in which phase will crossing-over occur? a. mitosis b. metaphase ii c. prophase i d. meiosis ii

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above