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

Which statements describe resources? one of the factors people use when deciding where they will live is the availability of resources. renewable resources have little value for people. resources are unevenly distributed throughout the world. energy is the world resource which has the highest use. the use of nonrenewable resources has decreased in recent history. the use of resources is evenly distributed throughout the world. the world's oil supply will last for the next forty years if its use continues as expected.