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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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Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

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The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

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The average office desk has 400 times more bacteria on it than a toilet.

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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

Approach used to determine the evolutionary relationships among many animal species using molecular Approach used to determine the evolutionary relationships among many animal species using molecular
A marine food web in action: feeding baleen whales and birds. A marine food web in action: feeding baleen whales and birds.
The Environment Influences Gene Expression The Environment Influences Gene Expression
Marine myths measured Marine myths measured
Caregivers’ responses sometimes help a child with strong emotions adapt to the environment. Caregivers’ responses sometimes help a child with strong emotions adapt to the environment.
Similar-looking, related species that are native to distant geographic realms Similar-looking, related species that are native to distant geographic realms
Video: Homeostasis (range of body conditions, normal limits, mild stresses & severe stresses)

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