1 The process by which organisms use chemical energy to produce carbohydrates is 2 A collection of all the organisms that live in a particular place, together with their physical environment, is a(an)

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A chemical substance that an organism requires to live is a(an)

3 Autotrophs, which make their own food, are also called

4 A group of ecosystems that have the same climate and dominant communities is a(an)

5 A process in which elements, chemical compounds, or other forms of matter are passed from one organism to another and from one part of the biosphere to another is a(an)