The alveoli. These little air sacs are found on the end of the bronchioles and are the place where oxygen enters the blood and the carbon dioxide leaves.
I would say presence of inorganic molecules I THINK not sure.
I believe the answer is c
Answer:
An arctic fox changes its fur color to blend in with its surroundings
Explanation:
This is a defense mechanism because when it blends into its surroundings it can hide from its predators and help defend itself
Answer:
Ionic Bond
Explanation:
It is one of the main types of chemical bonds in chemistry. Ionic bonds are caused by electrons transferring from one atom to another.