The answer would be A. the influence that your friends have on your behavior.
B. recreational activity's such as walking, throwing, or riding a bike to school
Answer:
The three things to remember about gravitational forces in space are: (1) The gravitational forces are inversely proportional to the square of the distance between the objects. More is the distance between the object, less will be the gravitational force between them.
Explanation:
Its on google
I'm not sure, but I think that its your skin that protects the internal tissues.
The correct answer is b, phagocytosis and infection