Answered

1. It is a system that enables the respiration process in all living things. Breathing
process is essential to both human and animals in order to live.
A. Respiratory System
B. Cardiovascular System
C. Skeletal System
D. Muscular System​

Sagot :

Answer:

A

Explanation:

The respiratory system is a biological system consisting of specific organs and structures used for gas exchange in animals and plants.