Which of the following is true of integral membrane proteins? a) they lack tertiary structure. b) they are loosely bound to the surface of the bilayer. c) they are usually transmembrane proteins. d) they are not mobile within the bilayer. e) they serve only a structural role in membranes.

1. -define adaptation2 explain darwin's theories of descent with modification and natural selection in detail3. -explain how each of these provides evidence for evolution: a. -fossil record, including superposition and transitional fossilsb-anatomy, including homologous structuresc-biological molecules, including dna and proteins4. -explain the difference between convergent and divergent evolution.5. -define and give three examples of artificial selection6. -define and give one example of coevolution.7. -explain biodiversity and how it benefits humans.8. -explain a type of population lest affected by environmental change.