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According amino acids amount amphipods Analysis Analysis/Biology Analysis/Earth Science animals Application/Biology Application/Chemistry Application/Physics atmosphere bacteria ball behavior Bering Sea Bernoulli's principle Biology biome blood body Cambridge GED Program carbon dioxide catalysts cause cells chemical choices clone Comprehension/Biology Comprehension/Earth Science contain decrease diagram digestion dolphins Earth Science ecosystem electrons eliminating energy level environment Eohippus Evaluation/Biology Evaluation/Earth Science feed fish fluid following passage following statements food chain food energy forest gases genes genetic gold graph greenhouse effect grow guayule heat human incorrect increased insects insulin Items light live meat metal microwave molecules move natural rubber nutrients object organisms oxygen particles plants pollution population Practice Test predator pressure produce protein radiation radioactive reaction refer Revised Cambridge GED rock saprophyte scientist sea lamprey soil sound waves species speed substance sunlight sunspot surface temperature tion tree trichinosis trypsin tube Tum-Aid Type Biology upwellings vitamin waves travel whales