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How Age factors Affecting the calcium absorption?
Age is another factor which influences the absorption of calcium. Fractional absorption of calcium is highest in infancy i.e., 6O%, followed by the early pubertal period. One study found 28% calcium absorption in pre pubertal children that increased to 34% in early puberty returning to the adult value of 25% two years later. Absorption of calcium is also increased in pregnancy to levels higher than 25% reported for adults. Available data suggests that in post menopausal women, absorption declines by 0.21% every year. Thus, from 50 years to 70 years, absorption may decline by 4%. Ageing also reduces renal losses of calcium, due to reduced absorption and decrease in filtered calcium load.
characteristics of leucosolenia?
The allele that causes albinism (p) is recessive to the allele for normal pigmentation (P). A normal woman whose father is an albino marries an albino man whose parents are both no
There are several methods by which a disease-causing organism can be transferred from the reservoir to the host organism. Direct contact : Disease - causing organism may be tr
Explain the Marasmus - protein energy malnutrition? Marasmus, the other end of the same spectrum as kwashiorkor, is common in children below the age of 2 years. The characteris
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Why Chordates are Schizocoelic, while other deuterostomes are enterocoelic?
Define Physical and Physiological Changes? Every stage has its unique requirements due to different changing needs. With respect to nutrition and health, four different basic a
Photoperiodism Activity like breeding and migration in animals; flowering, seed germination in plants are regulated by the length of daily period of light and darkness. This be
Explain the Faecal Coliforms - Microbiological Study of Water? The faecal coliforms include a wide range of bacteria, many of which are not primarily the intestinal bacteria. T
important of biology to man
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