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Life Science Crossword Puzzle

Across
A condition needed in an organism that is perfect balance for function.
An individual living thing.
Anything that has mass or volume
The process where producers use light to create sugar.
The smallest unit of life.
An animal that other animals hunt and eat.
The release of harmful substances into an environment.
The study of how living things interact with each other and their environment
A non-living factor
Down
An organelle in a plant cell that contains chlorophyll.
A structure in an organism that is made up of many tissues.
The process of breaking down food into usable materials.
A living thing that gets its energy by eating other living things in a food chain.
A group of atoms held together by covalent bonds.
A living factor
An organism that captures energy from the sun to make its own food.
The study of life and all living things