The diagram shows the general structure of a lipid, which consists of two main parts. A carboxyl group in a circle and a chain. Which part is circled? alcohol group fatty acid carboxyl group unsaturated lipid

Scientists discovered fossils in several layers of the earth you see here. they found fossils of algae, snails, and clams in layer d. given that information, where do you think they found fossil evidence of simple land plants and amphibians? a. a b. e c. f d. g