Answer:
True :)
Explanation:
an organ system is consisted of a group of organs that work together to carry out a complex function.
I would say all of the above
Is that an option?
Diffusion allows the exchange of substances; the entry of oxygen, proteins, etc into the cell and the removal of waste substances.
Answer:
Intestine is the lower part of the alimentary canal from the end of the stomach to the anus.
Explanation:
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.