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