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Did you know?

Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

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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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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

Did you know?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

Sieve-tube elements and companion cells in phloem tissue Sieve-tube elements and companion cells in phloem tissue
Ice-wedges form netlike polygons on the surface of the tundra, aerial photo of polygonal peat platea Ice-wedges form netlike polygons on the surface of the tundra, aerial photo of polygonal peat platea
Seasonal changes in biomass and growth form of benthic algae in the Eel River, California: (a) in ea Seasonal changes in biomass and growth form of benthic algae in the Eel River, California: (a) in ea
Whitefish blastula cells Whitefish blastula cells
Formation of blood cells Formation of blood cells
Totipotent stem cells Totipotent stem cells
Video: Chloroplast Structure & Light Dependent Reactions (Photosystem 1 and 2 Cyclic Electron Flow)

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