Answer:
They don't reproduce independantly but have to invade other cells.
Explanation:
An observed consequence of higher water vapor concentrations is the increased frequency of intense precipitation events, mainly over land areas. ... Furthermore, because of warmer temperatures, more precipitation is falling as rain rather than snow.
Answer:
Beavers and their dams play an important role in nature. Because of the dramatic effects their dams have on surrounding ecosystems, these mammals are considered a keystone species. By constructing dams they create wetlands -- lush environments which attract fish, ducks, frogs and other creatures.
Explanation:
Because we can’t tunnel down, so in order to study the interior layers, we must use indirect methods.
Retinol is the form of vitamin A that causes the greatest concern for toxicity.
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