Which of the following plant hormones, when mixed with water and sprayed on plants or seeds, tend to stimulate growth? a.
auxin
c.
nioxin
b.
abscisic acid
d.
gibberellins

In what part of the body does the most muscle activity happen?

The human body needs energy in order to carry out life processes such as breathing. where does the body get this energy? a. from eating food b. from learning about new things c. from lying in the sun d. from sleeping

As the earth formed, the force of gravity increased due to increased mass. what effect did this increased gravity have on the forming planet?