When a sperm and an egg are combined they create a zygote.
When you are in stress your body and mind are tense and your body and mind cannot concentrate or operate as it normally does, Resulting in many different downsides like not being able to exercise properly.
They’re called Endorphins
B Osteoporosis, it’s chronic and you’re born with it so it’s not preventable
Answer: 11. B 12. A
Explanation:
Hope this helped!
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