Answer:Animals get these amino acids by eating plants or animals that eat plants. This works because plants can make all twenty amino acids including the ten or so "essential" ones that most animals can't. ... Animals evolved to work this way because it saves energy.
Explanation:
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Human. they are the only ones with mammary glands, hair, and four limbs
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The continental drift says that the world was made up of a single continent, now divided by the plate-tectonics movement. The plate-tectonics, so, explains how the continents are drifting.
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Congress wanted to raise money for the treasury because the needed to pay off war debts.
