It should be puberty because once a female starts her menstrual cycle she is able to become pregnant. The same should go for guys when it comes to their sperm becoming "active" in other words
<span>Epiglottis? I think that's how you spell it. So sorry for the late answer. I would appreciate a brainliest though! </span>
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they inject people with small amounts of deadly viruses to get us immune to it so its harder for the body to get sick. like the flu shot it basically kind of has the flu in it and when you get injected with it the body gets immune to it so its harder for you to get sick with the flu because your bodies already immune to that virus hopefully this helped
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same your going to be okay tho.
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These are all true but I do not know the last part of the answer