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Did you know?

Everyone has one nostril that is larger than the other.

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The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

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Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

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Blood is approximately twice as thick as water because of the cells and other components found in it.

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The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

An electrocardiogram (EKG) wave, a record of the electrical signal as it moves through the conductio An electrocardiogram (EKG) wave, a record of the electrical signal as it moves through the conductio
Lymphatic vessels pick up excess tissue fluid, purify it in the lymph nodes, and then return it to t Lymphatic vessels pick up excess tissue fluid, purify it in the lymph nodes, and then return it to t
Synthetic chemicals deplete stratospheric ozone Synthetic chemicals deplete stratospheric ozone
Aging and Fluid, Electrolyte, and Acid-Base Homeostasis Aging and Fluid, Electrolyte, and Acid-Base Homeostasis
The system moves at 1.50 2 m/s while the inclined planes are rough. a) Determine the ... The system moves at 1.50 2 m/s while the inclined planes are rough. a) Determine the ...
Group defenses: Cluster of sawfly caterpillars regurgitating fluid (yellow) that predators find unap Group defenses: Cluster of sawfly caterpillars regurgitating fluid (yellow) that predators find unap
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