Answer:
B. involuntary activities
It protects the Earth from becoming over heated, but with pollution, global warming has become more apparent because of the destruction of the ozone layer
Electromagnetic fields and therefore waves are generated orthogonal to the electric current that generated it.
<span>Its just what their diet is made of, meat, mainly other fish. So if there is blood around, there is probably food around.
Same thing with your favorite food.
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Answer:
<em>The kidneys act as very efficient filters for ridding the body of waste and toxic substances, and returning vitamins, amino acids, glucose, hormones and other vital substances into the bloodstream. The kidneys receive a high blood flow and this is filtered by very specialised blood vessels.</em>
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