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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.
Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.
Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.
![The parathyroid glands. These four glands are located on the posterior side of the thyroid gland. Th](https://biology-forums.com/gallery/47/medium_14755_28_08_12_1_42_27_8234754.jpeg)
![In the box on upward social mobility on page 82, we discussed how Latinos face a similar situation. ...](https://biology-forums.com/gallery/27/medium_660366_13_04_17_9_02_38_277391195.png)