Answer: Their are four stages of sleep.
Explanation:
Answer:
Hormonal contraceptives (the pill, the patch, and the vaginal ring) all contain a small amount of man-made estrogen and progestin hormones. These hormones work to inhibit the body's natural cyclical hormones to prevent pregnancy.
Explanation:
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Google gets the credit for this one
Answer:
natural ammunity
Explanation:
immunity possessed by a species or race that is present in an individual at birth prior to exposure to a pathogen or antigen.
Answer:
helium is less dense than air
That statement would be False
If that acute sports injury results in unconsciousness, there is a high probability that it's caused by neurological problem and should be brought to emergency as soon as possible
