Scince 1. The system rids the body of cellular waste.
A. respiration
B. nervous
C. excretory
D. integumentary
2. The system receives stimuli and transmits the information into actions.
A. nervous
B. integumentary
C. respiration
D. excretory
3. The system breaks down food for the body.
A. nervous
B. digestive
C. excretory
D. integumentary
4. The system is the first line of defense in preventing foreign invaders from entering the body.
A. integumentary
B. respiration
C. excretory
D. nervous

what are the blinks above

1. The system rids the body of cellular waste.  

C. excretory  

2. The system receives stimuli and transmits the information into actions.

A. nervous  

3. The system breaks down food for the body.  

B. digestive  

4. The system is the first line of defense in preventing foreign invaders from entering the body.  

B. respiration

Explanation:

air exerts forces on falling objects near earth’s surface.

explanation:

the term 'free falls' refer to object that are falling towards the earth, in a situation in which gravity is the only force acting on the object.

for an object in free fall, the acceleration is constant (g, the gravitational acceleration), and so the velocity of the object constantly increases.

for objects near earth's surface, there is always another force acting on the object: the resistance due to the air. this force is opposed to the direction of fall of the object, and it is proportional to the velocity of the object, so as the object falls down, this force increases up to a point when it balances the force of gravity, and the object continues its motion at constant velocity (called terminal velocity). since in this case gravity is not the only force acting on the object, we are not in a situation of free fall.