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Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

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Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

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The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

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Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

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Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

The breeding and wintering grounds of the American redstart, Setophaga ruticilla. The breeding and wintering grounds of the American redstart, Setophaga ruticilla.
The heme group viewed from the side. This view shows the two coordination bonds to Fe2+ The heme group viewed from the side. This view shows the two coordination bonds to Fe2+
Scientists (group photo) Scientists (group photo)
A group of capped langurs. A group of capped langurs.
Basic Food Group Choices for a 1,200 Calorie Eating Plan Basic Food Group Choices for a 1,200 Calorie Eating Plan
Largest nitric acid plants in the United States Largest nitric acid plants in the United States
Video: Integumentary Anatomy

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