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Vocabulary 16

Across
2 or more of the same kind of organisms that live in an area
A gas that humans and other animals breathe out and plants take in ti make food
An organism that cannot make its own food and must eat other organisms for energy
The process by which humans, other animals, and even plants use oxygen to breakdown food into energy
A community along with the nonliving parts of its environment
A gas that plants give off that humans need for cellular respiration (to get energy)
Down
An organism that gets its energy by breaking down the remains of dead organisms
The process by which plants use the sun's energy, water, and carbon dioxide to make their own food
All of the populations living in an area
An organism that uses sunlight to make its own food (plants)
A single living thing
All of the things an organism does or its role in an ecosystem