Skin cells are lost daily even without injury. which best describes the purpose of the cell cycle for skin cells in this circumstance?
a.) reproduction
b.) repair
c.) synthesis
d.) growth

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Which would happen if more forests were cut down? a. the nitrogen cycle would be stopped b. nitrogen would be fixed by bacteria more quickly c. the amount of co2 in the atmosphere would increase d. fossil fuels would build up in the soil c the amount of co2 in the atmosphere would increase

How many major plates cover the earth