The female sex chromosome determines the sex of the child.

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

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HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

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Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

A recent study found that female baboons that groom each other are more likely to come to each other

Child development varies and is hard to predict

The female and male urinary systems.

The male and female reproductive systems.

Cataracts seen in a child with congenital rubella syndrome.

Author Question: The female sex chromosome determines the sex of the child. (Read 110 times)

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