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By studying fossils, scientists have learned that
A.
both animals and plants have changed over time.
B.
plants have changed over time, but animals have not.
C.
animals have changed over time, but plants have not.
D.
neither animals nor plants have changed over time.
Answers: 3
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If 10.g of agno3 is available, what volume of 0.25 m agno3 can be prepared
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An electron moved from shell n = 2 to shell n = 1. what most likely happened during the transition? a fraction of a photon was added. a photon of energy was absorbed. a fraction of a photon was removed. a photon of energy was released.
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Which describes fat? a: a carbohydrate that produces energy b: a nucleic acid that directs cell function c: a lipid that stores energy d: a protein that speeds up a chemical reaction
Answers: 1
By studying fossils, scientists have learned that
A.
both animals and plants have change...
A.
both animals and plants have change...
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