Answer:
I think it goona be A am I right or wrong
er:
Explanation:
In the lungs CO2 is removed from the blood and send out the body where we exhale
Answer: Electromagnetism
Explanation: Electromagnetism is one of the four fundamental forces (the other three are gravity, strong nuclear force and weak nuclear force.) It acts between all the particles having an electrical charge.
From the options, I would say it would be option B.
Answer: Lactobacillus
This kind of cell would be considered a friendly cell, a cell that would protect your body. But, it's more into animals then anything else. But, there's all kind of these kind of cells, that's why they can be into any kind of animal and human. Hope this helps.