What is the first stage in a low/medium mass star's death? Choose one of the following. (neutron star, nova, protostar, red giant, red super giant, supernova, or white dwarf)

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