Autonomic nervous system (ANS)
Green in color due to the chlorophyll used to absorb energy from the sun.<span />
Answer:
The cells that make up the digestive, muscular, skeletal, reproductive, and excretory systems all need oxygen from the respiratory system to function, and the cells of the respiratory system as well as all the other system bneed nutrients and must get rid of metabolic wastes.
Explanation:
True
One of the key components in photosynthesis is CO2
