Deserts, savannas, and grasslands.
Answer:
Voluntary is something that contracts consciously, any skeletal muscle. Involuntary contracts on its own, like cardiac and smooth muscle. Cardiac being your heart of course and smooth being organs, like small intestine.
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False. <span>The British bacteriologist </span>Almroth Edward Wright<span> first developed an effective typhoid vaccine at the Army Medical School in Netley, Hampshire.
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Is the answer is A. Volcanic activity