1) An ecosystem includes: a. only animals b) only plants c) Living and nonliving things together a) both a and b b) Only c 2) Which of the following is a nonliving part of an ecosystem? a) rock b) grass c) fish a) Only a b) Both a and b 3) Matter in an ecosystem is: a) Only living things b) Anything that has mass and takes up space c) Only gasses a) both a and c b) Only b 4) Living things and nonliving things depend on each other in an ecosystem. a) true b) false 5) All ecosystems on Earth are exactly the same. a) true b) false

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