1) Biotic and abiotic factors together form a... a) Ecosystem b) A community of living things c) Biosphere d) I dont know 2) What is the main difference between biosphere and ecosystem? a) They are the same b) The ecosystem is a set of living and inert beings that inhabit a certain place and the biosphere is the set of all living beings that inhabit the earth. c) The biosphere is a set of living and inert beings that inhabit a certain place and the ecosystem is the set of all living beings that inhabit the earth. d) I dont know 3) What is a biome? a) I dont know b) It is the same as the biosphere. c) it is a large area characterized by its vegetation, soil, climate and wildlife. d) it is a small area characterized by its vegetation, soil, climate and wildlife. 4) Who are the producers in a food chain? a) Animals b) I dont know c) Mushrooms d) Plants 5) Define what is a food chain and a food web a) I dont know b) The food web is a linear sequence of organisms that begins with the producer organisms and ends with the decomposing species. The food chain is a connection of multiple food chains. c) Both are food chains d) The food chain is a linear sequence of organisms that begins with the producer organisms and ends with the decomposing species. The food web is a connection of multiple food chains. 6) what is the first factor in a food chain? a) Sun b) Animals c) Plants d) I dont know 7) Cycle of living beings that consume each other... a) Food chain b) Food web c) Ecosystem d) Biome e) I dont know

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