1) Which of the following are biotic factors in an ecosystem? a) rain, sunlight, and plants b) plants, animals, and bacteria c) temperature, animals, and plants d) animals, minerals in the soil, and rain 2) What is a producers job in the ecosystem? a) to make food and oxygen for animals b) to help plants grow c) to break down dead plants and animals d) to eat plants and animals to produce carbon dioxide  3) Why are animals important to an ecosystem? a) They produce oxygen  b) They eat bacteria  c) They help break down dead plants  d) They produce carbon dioxide  4) What is the difference between an abiotic factor and an abiotic factor? a) Biotic factors include elements like weather and temperature, while abiotic factors produce carbon dioxide and oxygen b) Biotic factors are living things, and abiotic factors are non-living things  c) Biotic factors exist in an ecosystem, but abiotic factors do not d) Biotic factors are non-living things and abiotic factors are living things.  5) What is an ecosystem? a) The pattern of weather that affects a particular area b) the life cycle of a plant, from seed to flower c) all living things in a particular environment, like a forest or a desert d) a community of organisms that interact with their environment 

The Ecosystem

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