Answer:
I think the answer is D because mens testosterone levels are high until the age of 40, then the lower.
Explanation:
Answer:
cutting a substance into 4 pices
Explanation:
the chemical make up of the substance didn't change and no new things were formed therefore it is a physical change
Cells— tissues— organs— organ systems— human body.
Answer: True?
Explanation: The wording of the question is confusing?