I think its A
A dog will bark at animals and cars, but only if the environment permits.
-Seth
A toxic substance is absorbed by a green plant and is completely blocking the production of ATP
Answer:
Explanation:
The density of a liquid determine if it will float or will in another liquid. It will float if it is more dense than the liquid it is placed in
A constant in an experiment is <u>B. </u><span><u>the quantity that must remain the same</u>. If it is constant, it doesn't change, so it cannot be variable. D makes no sense.
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