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The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

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When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

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Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

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Though Candida and Aspergillus species are the most common fungal pathogens causing invasive fungal disease in the immunocompromised, infections due to previously uncommon hyaline and dematiaceous filamentous fungi are occurring more often today. Rare fungal infections, once accurately diagnosed, may require surgical debridement, immunotherapy, and newer antifungals used singly or in combination with older antifungals, on a case-by-case basis.

Do you know how kangaroos balance their body Do you know how kangaroos balance their body
Body odours Body odours
Movements of the Body Movements of the Body
The diminishing effects on body weight of a low-calorie diet and a high-calorie diet. The diminishing effects on body weight of a low-calorie diet and a high-calorie diet.
Fifth Root Symbol Fifth Root Symbol
Digestion converts whole foods into individual nutrients that can be used by the body’s cells Digestion converts whole foods into individual nutrients that can be used by the body’s cells
Video: Cellular Defects - Osteoblasts, Osteoclasts and Osteocytes

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