Answer:
D
Explanation:
Fossils tell us where they came from.
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When blood ph is above normal range, it is a condition called, alkolosis. When blood ph is below the normal range, it is a condition called acidosis.
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<span>Mutations sometimes improve the chances of survival for an animal.
But rather rarely. Advantageous mutations do happen, but neutral and harmful mutations are way more common.
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The second law of thermodynamics states that not all of the energy is used because some of the energy is lost in the form of heat. The lost heat energy is an unusable form of energy, and it causes an increase in the entropy of the universe. Thus, no energy transfer process is efficient due to the loss of energy.
