I believe the answer is answer D- Nuclear decay rates are constant.
~ Good luck!
The smallest working unit of living things is cell(a)
The anwser is (A).<span>Methanogens. hope this helped you out
have a great day :)</span>
Answer:
DescriptionElectricity is the set of physical phenomena associated with the presence and motion of matter that has a property of electric charge.
Explanation:
"The taller you are, the faster your heart rate." This hypothesis is testable, but not experimental.