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

For a to be healthy, it has to have lots of different kinds of plants and animals. all of the different types of plants and animals in an ecosystem. name four types of ecosystems from those listed in the video. b) c) d) most living things live here. all living things depend on how an ecosystem like a game of sticks? why should we build new buildings on existing land? name four extinct species from those listed in the video. b) c) d) the best way to wipe out a species is to the largest ecosystem in the world is this percent of the world is covered by water. how many of all species in the world live in the ocean? list five things you can do to increase biodiversity. b) c) d) e) how many species are we losing per hour?

Explain how light energy is turned into chemical energy? ! due tomorrow!

How can we use spectral lines of light coming from the superclusters to identify which is receding from earth at the slowest rate.