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Q. Is the epithelium vascularized? How do oxygen and nutrients reach the epithelium? Why is this feature an important evolutionary acquisition?
Epithelia are not vascularized capillaries don't directly reach their cells the epithelium exchanges substances by diffusion with the connective tissue situated under it.
Since the epithelia are not vascularized minuscule scratches or skin injuries that happen all the time do not trigger bleeding and do not expose the blood to contamination from external agents this is an important protective strategy discovered by evolution.
How Drugs Increase Food Intake? You must understand that drugs may also increase food intake. This is because they can: Stimulate appetite : This is a common side effect
H e morrhagic enteritis in Turkeys The viral etiology in turkey poults showing sudden death was first described in1930 and thereafter reported in most turkey-producing areas.
What are some human diseases caused by virus and what are their respective modes of transmission? The main viral diseases transmitted by respiratory secretions (cough, sneezes)
living and non living
1. A roan bull which is heterozygous for the polled condition is mated to several cows of identical genotype to his. How many roan, polled animals should be produced out of 16?
Heifers As efficient reproductive performance is essential for economic livestock production, the female calves must grow rapidly to attain sexual maturity, ovulate and be mated b
Explain about the Biofertilizers Biofertilizers, are the cultures of microorganisms used for inoculating seed or soil or both under ideal conditions to increase the availabilit
1. Compute the mean energy per nuclear disintegration, A, for 99m TC if 2.0 x 10 9 Bq of this isotope is injected into a patient. Assume that one-half of the administered dose is
Explain Minerals requirement during thyphoid Minerals: Loss of electrolytes and water is observed due to diarrhoea. Thus liberalizing on sodium intake through salty soups,
What is the mode of nutrition in fish,human,amoeba,scorpian & toad ?
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