Answer:
1. The _________ system rids the body of cellular waste. Â
C. excretory Â
2. The _______ system receives stimuli and transmits the information into actions.
A. nervous Â
3. The ________ system breaks down food for the body. Â
B. digestive Â
4. The _____________ system is the first line of defense in preventing foreign invaders from entering the body. Â
B. respiration
Explanation: