Pufferfish<span> will puff up</span><span> if they are threatened.
I don't think it's possible though.</span>
Answer:
Germs
Explanation:
Vaccines are made from the same germs (or parts of them) that cause disease; for example, polio vaccine is made from polio virus.
The earthworm has a closed circulatory system, and there are 3 main vessels: <span>aortic arches, dorsal blood vessels, and ventral blood vessels.
aortic arches: It functions as the heart of the earthworm
dorsal blood vessels: Responsible to carry blood to the front of the body
ventral blood vessels: Responsible to carry blood to the back of the body
hope this helps</span>
According to source. remain outside the danger (hot) zone is right.
The answer is B) size or length
