In small intestine millions of micro villi are present for greater absorbption of digested food.
When the continents are at the Earths poles, they receive less sunlight.
Answer: both viruses and bacteria can be treated with vaccination, both are spread through airborne means, and both are considered microbes.
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Explanation:
The modern theory of chemical evolution is based on the assumption that on a primitive earth a mixture of simple chemicals assembled into more complex molecular systems, from which, eventually came the first functioning cell(s).