I believe the anwser is c
2. improves the health of your muscles and I would think 1. considered exercise but the part with some of the time throws me off
I believe it’s carbon dioxide, because you use your respiratory system to breathe in oxygen, and oxygen goes through your circulatory system. And you breathe out CO2.
Answer:
Drug and alcohol use can harm the health of a person with HIV. Specifically, drug and alcohol use can weaken the immune system and damage the liver. People with HIV take a combination of HIV medicines (called an HIV treatment regimen) every day to stay healthy.
Explanation:
Answer:
<u><em>The membrane potential is the basis for the conduction of nerve impulses along the cell membranes of neurons. Ions that are important in the formation of a nerve impulse include sodium (Na+) and potassium (K+). Ion channels and ion pumps are very specific; they allow only certain ions through the cell membrane.</em></u>
Explanation:
