Answer:
A compound with a C:H:O. ratio of 1:2:1 is a carbohydrate. The body uses carbohydrates mainly as an energy source.
Explanation:
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Human bodies contain enzymes that can break down starch into glucose and use it for fuel. We do not have the enzymes necessary to breakdown cellulose.
Answer:

Define Biosystematics ???

taxonomy based on the study of the genetic evolution of plant and animal populations.

<span>can interact to influence a trait, such as eye color
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The second law of thermodynamics says that the transfer of energy is imperfect. For example on Newton’s cradle, as GPE is transferee to kinetic energy and back, energy is lost due to gravity forcing the balls down and eventually the motion stops