B. There are several new ideas about the causes of rise in sea level.
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Red stars have a larger radius and luminosity than a main sequence (aka dwarf) star of the same surface temperature.
In a pond oxygen is gathered in two ways. One from the air or from the aquatic plants that live in the pond. Oxygen gets dissolved from these when mixed with air and water movement
Answer: I cant say for sure how many species have to be extinct. But yes a species can become extinct.
Explanation:
Answer:
They are all Eukaryotes, with nucleus, and chromosomes. They also have membrane which demarcate part of the cytosol. In addition they lac cell wall.
Explanation:
