It is gotten from the atmosphere by respiration, burning of fossil fuel, decay, excretion and decomposition of organic matter, fossilization etc
Answer:
<h2>An activated B cell divides into cells that give rise to memory B cells and plasma cells.</h2>
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OK so I'll give you two examples you can catch it if someone who is infected coughs or sneezes so basically it can be spread via airborne or you can even get it from sharing food or drinks also the best way to get rid of strep will be antibiotics/over the counter medicines or gargling warm salt water
Answer:
Reproduction is important for the survival of all living things. Without a mechanism for reproduction, life would come to an end.
Explanation:
Reproduction is a characteristic of all living systems; because no individual organism lives forever, reproduction is essential to the continuation of every species.
<span>Ethylene is used to ripen crops so that all plants in a crop will ripen at the same time.
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