1) Ecosystems are made of: a) only living things b) only nonliving thing c) living and nonliving things 2) An ecosystem is:  a) where an animal or plant lives. b) the interaction of animals and plants in an habitat. 3) The three groups of ecosystems are: a) marine, freshwater, and terrestrial b) freshwater, terrestrial, and ocean c) marine, freshwater, and forest 4) A desert is a ____ ecosystem. a) marine b) terrestrial c) freshwater 5) The Atlantic Ocean is a ___ ecosystem. a) marine b) terrestrial c) freshwater 6) The Amazon River is a ___ ecosystem. a) marine b) terrestrial c) freshwater 7) Ecosystems have everything an organism needs to survive. a) True b) False 8) Human activity never affects ecosystems. a) True b) False

ECOSYSTEMS REVIEW

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