Which of the following is always a component of allergies?
Out of all the answers shown above the one that best represents the one that is always a component of allergies is answer choice A) histamine.
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Answer:
I think the best answer is b.
Body composition is used to describe the percentages of bone, water, fat, and muscle in human bodies.
This could be many things. It's common for young girls you have irregular periods but could also be a health problem. There is also a possibility of pregnancy if she is sexually active.