The same time, carbon dioxide that is dissolved in the blood comes out of the capillaries back into the air sacs, ready to be breathed out. Blood with fresh oxygen is carried from your lungs to the left side of your heart, which pumps blood around your body through the arteries.
I think the first one is right !.... but the for the other one it's B .
Answer:
The base, it is called a nitrogen base
Explanation:
Endocytosis even though there are two types of this
