Answer:
Options B and D
Explanation:
In animals, gaseous exchange takes place in the alveoli in the lungs. Generally, animals breath-out (exhale) carbon dioxide and breath-in (inhale) oxygen. Thus, carbon moves from the blood in the form of carbon dioxide into the alveoli in the lungs while the oxygen inhaled moves from the alveoli in the lungs to the blood where it is transported round the body as oxyhaemoglobin.
Answer:
1. Are HIV and AIDS the same thing?
2. Can HIV live outside the body?
3. How are HIV and AIDS transmitted?
4. Can you get AIDS by someone having AIDS?
Explanation:
Hope this helps :)
Answer:
Oxygen is one product of photosynthesis.
Explanation:
??? is the fifth?
Answer:
A.
Explanation:
the mitochondria is the powerhouse of the cell