Darwin called the ability of an organism to survive and reproduce in its enviorment

In natural selection, what is actually “selected? ” a) alleles are directly selected b) genotypes are directly selected c) phenotypes are directly selected d) entire populations are directly selected

What is true of all organisms in the kingdoms protista, plantae, fungi, and animalia? a. they are multi-celled. b. they are photosynthetic. c. they have cells that contain membrane-bound organelles. d. they contain cells that lack membrane-bound organelles.

Long-period comets come from the oort cloud particles in earth’s atmosphere material from the asteroid belt the kuiper belt