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Author Question: A 2.0-kg block situated on a frictionless incline is connected to a light spring (k = 100 N/m), as ... (Read 161 times) |
Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.
People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.
Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.
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.