Testosterone Steroid
Ovaries Estrogens and progesterone
I Think that this help you
By he NIH trying a new drug to help reduce pain associated with sickle-cell anemia, it's an example of an "experiment".
An experiment involves a hypothesis (an educated guess as to what's going to happen) and trying out the hypothesis and finding the solution.
Answer:
12.56
Explanation:
Multiply 3.14 by the radius (2)
