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Q. Define Neural and Neurotransmitter Control?
Coronary arteries are richly innervated by adrenergic and parasympathetic nerves. Both alpha 1 and alpha 2 adrenergic receptors are present in coronary arteries and when activated by circulating norepinephine causes vasoconstriction, which appears to be mediated by an increased concentration of Ca++ in coronary vascular smooth muscle. Beta 2 adrenoceptors in the large and small coronary arteries mediate vasodilation
What do you understand by Exoskeleton. Supporting structures of skeleton not surrounded by the body. Endoskeletal elements are secreted by an underlying epidermis and one side
differences between acoelomate,coelomate and pseudocoelomate
Cnidaria - Protozoa The mature medusoid jellyfishes like Aurelia are the sexual stages. Sperms and eggs produced in the dissimilar (male and female) individuals ale released i
Why is AIDS difficult to prevent by vaccination? It is complex to produce a vaccine against AIDS because the HIV is a highly mutant virus. In almost every replication the produ
Explain Mechanism of Absorption of Haem Iron? Haem iron is soluble in the alkaline environment of the intestine. It binds to the receptor on the enterocytes and is internalized
Q. Show Very low level of lactase activity? Very low level of lactase activity: at very low level of lactase activity all milk products must be eliminated, substitutes of milk
What are the main limiting factors for the growth of a population? The factors that limit the growth of a population can be divided into biotic factors and abiotic factors. The
Q. Biological species concept? A biological species as defined by Ernst Mayr are "groups of actually or potentially interbreeding natural populations which are reproductively
Urine Collection: Untimed or random urine specimens are suitable only for few chemical tests (mainly qualitative test). Usually urine sample is collected over a predetermined
Name three sources of energy which do not depend on fossil fuel. Sources of energy which do not rely on fossil fuel are water (hydroelectric generation), wind, tidal power, wav
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