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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
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Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.
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Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.
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Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.
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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
![Polycystic kidney disease. Notice the presence of numerous fluid-filled sacs, or cysts, in these kid](https://biology-forums.com/gallery/47/medium_14755_26_10_12_5_19_57_9665633.jpeg)
![Immunization with a vaccine. A healthcare professional is injecting a vaccine into the patient’s arm](https://biology-forums.com/gallery/47/medium_14755_11_11_12_7_20_13_10048217.jpeg)