All living cells need nitrogen to make nuclei acids, proteins, and other cellular constituents. Plants absorb nitrogen and put them into amino acids and proteins.
Answer:
C) Mass
Explanation:
Mass is made up by the amount of protons, neutrons, and electrons in an object. Mass is essentially the capacity of an object, which many times is mistaken for weight.
Shape, color, and size are all common ways to determine the species of the bird, when only looking at the egg.
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The answer is the first one "discharge".