The answer is; a) they are naturally occurring.
Cell wall because it protects the cell membrane.
Answer:
B. Only from the ocean to earth's surface
Explanation:
The biosphere is known as the layer of the Earth where life exists. It reaches a peak of ten kilometers above sea level, which is used by some birds in flight while the biosphere go to depths as low as 8 kilometers deep or the bottom of the ocean.
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It is with sperm and eggs, which are housed in spores in both species, so I’d say spores is the safest answer.
Answer:
Oxygen and nitrogen
Explanation:
Oxygen and nitrogen are very electronegative than any other element in the periodic table hence they have more tendency to attract an electron towards itself