The mouth is the beginning of the digestive tract; and, in fact, digestive starts here when taking the first bite of food
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Answer:
The answer is movement toward or away from Earth.
In astronomy, it is said that the Doppler effect tells Astronomers whether a star, or galaxy, is approaching or going away from us. It turns out the farther a galaxy is away, the faster it gets away from us - meaning that the Universe is expanding.
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Answer:
Photosynthesis and chemosynthesis are both processes by which organisms produce food; photosynthesis is powered by sunlight while chemosynthesis runs on chemical energy.
Explanation:
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