1) All the living and nonliving things in an environment and their surroundings a) Equilibrium b) Ecosystem c) Autotrophs d) Heterotrophs 2) Organisms that make their own food a) Autotrophs b) Decomposers c) Heterotrophs 3) Three Types of Living Beings a) Animals, Decomposers, and Consumers b) Biosphere, Atmosphere, and Hydrosphere 4) Relationships between animals are stable and the survival of animals is maintained a) Ecosystem b) Heterotrophs c) Autotrophs d) Equilibrium 5) All the non-living things in an ecosystem a) Heteretophs b) Biotope c) Biosphere d) Autotrophs 6) Different organisms living together in an environment a) Biosphere b) Biocenosis c) Biography d) Biotope  7) Organisms that cannot make their own food. a) Autotrophs b) Heterotrophs c) Decomposers d) Food Chains 8) They eat the remains of plants and animals. a) Heterotrophs b) Autotrophs c) Biotope d) Decomposers 9) A tool use to show which organism eats what a) Biotope b) Food Chain c) Decomposers d) Ecosystem 10) A way for people to use their resources without them running out. a) Sustainable Development b) Extinction c) Biotope d) Ecosystem 11) The disappearance of a species from Earth. a) Ecoystem b) Extinction c) Decomposers d) Autotrophs

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