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Explain Skin Secretions - External Defence Mechanism
The oil and sweat secreted by sebaceous and soporiferous glands contains fatty and lactic acids, which makes the surface of the skin acidic (pH 3-5). These prevent the organisms from infecting the skin. Some friendly bacteria, which reside on the skin checks growth of microbes to a certain extent. Lysosomal enzymes of the skin have a bactericidal effect. Thus the skin becomes a self-disinfecting organ.
Explain the Menstrual Phase - Menstrual Cycle If the ovum is not fertilized, a high level of progesterone in the blood inhibits the activity of pituitary gland and the producti
Explain Interferon Interferon interferes with viruses (hence the name) and is produced by most cells in the body. Interferons, like antibodies and complements, are proteins, an
How does nuclear power relate to kinematics?
why do we study science?
Locate Polaris, the North star, and comment on it's elevation over the Northern horizon. Using the keyboard controls (J, K and L keys), fast forward the program 6 - 12 hours and c
Genetic Engineering: The modem biotechnology revolution is based on the understanding and manipulation of the structure of DNA. DNA is a complex organic molecule that directs
1. If the landfill had a compacted density of 600 Kg/m3 a refuse depth of 9 m (29.5 ft), a moisture content of 20% by volume, and a 1-m (3.25-ft)-thick clay cover with a 2% slope
Explain Abductor Muscles Abductor muscle is a muscle that serves to draw a part out, or from the median line (as the abductor oculi, which draws the eye outward). Abductor m
advantages and disadvantages of centralised cataloguing
Q. Write the purposes of conditioning of wheat prior to milling? The purpose of conditioning of wheat prior to milling are to make the bran and germ pliable, thus preventing th
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