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Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Did you know?

Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

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Your heart beats over 36 million times a year.

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A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

The internal structures of the eye. The internal structures of the eye.
Internal view of the heart illustrating the heart chambers, heart layers, and major blood vessels as Internal view of the heart illustrating the heart chambers, heart layers, and major blood vessels as
Internal Anatomy of the pigeon Internal Anatomy of the pigeon
Internal structures at the back of the eye. Internal structures at the back of the eye.
The Punnett square of a dihybrid cross demonstrates Mendel’s law of independent assortment. The Punnett square of a dihybrid cross demonstrates Mendel’s law of independent assortment.
The body’s survival depends on mechanisms that maintain internal homeostasis The body’s survival depends on mechanisms that maintain internal homeostasis
Video: Sickle Cell Anemia

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