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Science Crossword By: Colbie


             Autotrophs and Hetrotrophs
Across
Fish and other animals that can swim freely
Can make its own food
Process of making food through chemical reactions
Tiny plantlike organisms
Organisms work together to form this
Can make their own food
Down
Eat other plants and animals for energy
Can not make its own food
Plants and animals that dwell at the bottom of body of water
Break down organic tissue into vital nutrients