- Grade 11 and 12 Mathematics (Moderator: geoffrey)
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Author Question: A population consists of 500 members and a simple random sample of 100 members is to be selected. ... (Read 58 times) |
- Grade 11 and 12 Mathematics (Moderator: geoffrey)
Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
On average, the stomach produces 2 L of hydrochloric acid per day.
To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.
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.
IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.