Answer: c
Explanation:
the roots absorb water and minerals from the soil and anchor the plant in the ground.
Answer:
11) A. The optimum pH of an enzyme is 6.6
12) C. A control group
NO, a scientific law can't be broken
The body needs to maintain the amount of oxygen that reaches our cells. If we exercise a lot, our breathing rate increases. More oxygen enables our cells to <span>more quickly respire aerobically, so that our muscles can contract more rapidly.
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