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