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natita [175]
3 years ago
14

Explain the reason there are still some cases of polio in the United States.

Health
2 answers:
Sedaia [141]3 years ago
8 0

Polio, or poliomyelitis, is a crippling and potentially deadly infectious disease. It is caused by the poliovirus. The virus spreads from person to person and can invade an infected person's brain and spinal cord, causing paralysis (can't move parts of the body).Jul 16, 2018
alisha [4.7K]3 years ago
3 0
There are still some cases of polio in the united states because there is a large amount of people in the united states who aren’t vaccinated
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The amount of sleep needed by an individual changes as the body ages , for example a baby needs more sleep than the adult ,who needs 6-8 hours per day to function properly .

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A family history of heart disease has a much greater influence on risk than factors such as an unhealthful diet, smoking, a sede
cluponka [151]

Answer:

False.

Explanation:

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Thus, the answer is false.

8 0
3 years ago
Does a fetus have an actively beating heart at 6 bweeks
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Answer: Before about week 8 of pregnancy, a doctor may refer to the fetus as an embryo. The heart of an embryo starts to beat from around 5–6 weeks of pregnancy. Also, it may be possible to see the first visible sign of the embryo, known as the fetal pole, at this stage.

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When is the proper time to eat when you exercise? ​
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within two hours of your exercise session

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