It is a structural carbohydrate which forms their exoskeleton. exoskeleton is the external skeleton that supports and protects an animal's body.
Answer:
oxygen decreases and co2 increases
Explanation: to try to do more gas exchange
The party of the leaf are the xylem and the Pholem they help transport water to the leaves.first the water is sucked up throughout the roots then travels up the xylem and pholem and then the water is transported to the leaves