Chemical weathering because it changes the chemical makeup of the substance.
I hope this helps, and I'm sorry if I get it wrong.
Answer:
The contents of the cell, or the structures of the cell, allow the cell to be "specialized." Together with the cell's proteins, they allow the cell to do specific things. They allow a cell to act like a neuron or a bone cell or a skin cell.
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they adhere to certain subcultures more than others.
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The correct answer is <u><em>D</em></u>. Birthrates drop, and may even drop low enough to reverse population growth.
