Answer:
The atomic number of phosphorus is 15. It has zero charge because it has 15 electrons.
Answer:
19. mass and dustance between them.
It is like a barrier, or wall. It helps infection and bacteria stay out. It can also help you indicate whether you are getting infection in the inside of your body. if you're skin is inflamed, that is a sign of disease or infection.
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Brainliest answer is always appreciated!<span />
Answer: the answer is b
Explanation: i took the quiz