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A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

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The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

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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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People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

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Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

Although Tasmanian devils are nocturnal, they like to rest in the sun. Scarring from fighting is vis Although Tasmanian devils are nocturnal, they like to rest in the sun. Scarring from fighting is vis
Normal glomerulus. Acute glomerulonephritis. Normal glomerulus. Acute glomerulonephritis.
Hypertroph​ic scarring Hypertroph​ic scarring
Diagram of the Glomerulus Diagram of the Glomerulus
Fates of drugs entering the glomerulus: filtration, reabsorption, secretion, and excretion. Fates of drugs entering the glomerulus: filtration, reabsorption, secretion, and excretion.
(A) Normal glomerulus and (B) acute glomerulonephritis. (A) Normal glomerulus and (B) acute glomerulonephritis.
Video: Photosynthesis overview Animation

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