C. <u>Secondary</u> sex characteristics include; increased fat deposits in *Breasts, thighs, & butt for females.* & *Penis & butt for males* and more.
The kidneys secrete an enzyme called renin
Answer:
EXERCISE
Explanation:
In an experiment, the independent variable is the variable that the experimenter changes or manipulates in order to bring about a measurable outcome.
In this case, an experiment is carried out to test the hypothesis that "exercise will affect the number of times a person can squeeze a clothespin in a certain amount of time". The experiment contained two groups (one group sits quietly before squeezing a clothespin as many times as possible and the other does 25 JUMPING JACKS before squeezing a clothespin as many times as possible).
The independent variable is the EXERCISE (jumping jacks) that was changed for each group in the experiment.
The mitochondrial structure affects its function because in its inner membrane, the cristae (folds) allow for more surface area which increases the amount of ATP that can be produced by the mitochondria.
A) Lifting a 1kg mass for 1 m
