1) An ecosystem consists of: a) Biotic factors only b) Abiotic factors only c) Biotic and abiotic factors 2) All living things are made of... a) matter b) carbon dioxide c) water d) animals e) bones 3) All of the energy in an ecosystem comes from...  a) the water b) the sun c) primary consumers d) carbon dioxide 4) What is a decomposer's job? a) crawl through the dirt b) water the plants c) break down dead materials d) eat fish 5) Which of the following is a BIOTIC factor? a) sun b) rocks c) rabbit d) water 6) Which of the following is a producer? a) a grasshopper b) a fish c) a wolf d) a flower e) a human 7) Which of the following is a primary consumer? a) the snake b) the sun c) the cricket d) the frog e) the bird 8) which of the following are decomposers?  a) grass & plants b) fruit & vegetables c) bacteria & fungi  d) soil and water

Ecosystems Check

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