<span>Most sandstone is composed of quartz or feldspar </span>
Answer:
The vascular system
Explanation:
The human blood circularitory system can be used to explain capillary action in the human body, our heart pumps blood in and out with no use of external forces.
The hypothalamus sends signals to the pituary glands. The hypothalamus releases dopamine, so I think dopamine is a good answer?
Answer:
It takes place in the Stroma
Explanation:
