Why would a decrease in phytoplankton affect the entire ocean food chain? . a) crustaceans and fish eat phytoplankton, and large ocean mammals eat fish. b) phytoplankton are the base of the food chain, and all ocean life depend on them for survival. c) zooplankton would have to replace phytoplankton, and there is a limited amount of zooplankton. d) every ocean animal eats phytoplankton including krill, crustaceans, fish, and large mammals

Suppose that on a small island off the coast of scotland, 32 percent of the population has blue eyes, which means that these individuals must be homozygous for the blue eye color gene (bb). the only other eye color found on the island is brown, and individuals that are homozygous for the brown eye color gene (bb) or heterozygous (bb) will have brown eyes because brown is the dominant gene. assume this population is in hardy-weinberg equilibrium. if 100 babies are born next year, how many of these would you expect to have brown eyes and be heterozygous? a. 58 b. 49 c. 29 d. 43