A community of living and nonliving things in their natural environment

A part of the ecosystem that is not living, such as sunlight, air (includes oxygen and carbon dioxide), water, rocks, and soil

A living thing.

An inherited trait or learned behavior that helps an organism survive in its surroundings

An organism that uses sunlight to make its own food for energy

An organism that gets energy by eating other organisms

An animal that gets energy by only eating other animals

An animal that gets energy by only eating plants

An animal that gets energy by eathing both plants and animals

An organism that gets energy by using dead organisms, nonliving materials, or waste as food

A connection of food chains with many food energy paths in an ecosystem

An organism that hunts and feeds on another organism

An animal that is hunted as food

An increase in the number of individuals of a given species over what its ecosystem can sustain, often with both direct and indirect effects on other organisms in the ecosystem

The movement of carbon dioxide and oxygen on Earth by the processes of respiration and photosynthesis

A gas produced by plants during photosynthesis that animals use for respiration

A gas produced by animals during respiration that plants use for photosynthesis

The process where plants use sunlight, water, and carbon dioxide to produce sugar and release oxygen

A process by which animals use oxygen and food to make energy and carbon dioxide

The source of energy for all food webs and food chains

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