Answer:
2] conserve salt 1] requires the presence of a membrane protein
Explanation:
easy your welcome enjoy your A+
Answer: I think it's Nuclear, sorry if I'm wrong!
Explanation:
Answer:
The heart has four chambers: The right atrium receives blood from the veins and pumps it to the right ventricle. The right ventricle receives blood from the right atrium and pumps it to the lungs, where it is loaded with oxygen. The left atrium receives oxygenated blood from the lungs and pumps it to the left ventricle.
Explanation:
