Answer:
There are five types of blood vessels: the arteries, which carry the blood away from the heart; the arterioles; the capillaries, where the exchange of water and chemicals between the blood and the tissues occurs; the venules; and the veins, which carry blood from the capillaries back towards the heart.
Explanation:
Glyccocayx sugar coat that surrounds cells
Proteins play the role of unwinding and separating a double-stranded DNA molecule.
I think It is A what is the question?
Explanation:
Answer:
The plants may produce needed carbon dioxide.
Explanation: