Answer: This is because the same type of crop planted repeatedly in the same area keeps draining the land of the same nutrients needed for that plant's growth.
Explanation:
In the Linnaeus system a kingdom contains similar phyla.
Answer:
They are necessary because, in fresh water, the concentration of solutes inside a cell is greater than that outside the cell, so the cell constantly absorbs water through osmosis
Explanation:
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Answer:
B a error in a DNA sequence
Explanation:
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