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An adequate level of pressure is needed in the arteries to keep the blood flowing through the cardiovascular system. The chief determinant of arterial pressure is the volume of blood in the arteries and the important determinants of this are the cardiac output and the peripheral vascular resistance. The resistance offered by the arterioles accounts for almost half the total resistance in the systemic circulation. The muscle in the arterial wall allows them to constrict or dilate. When they constrict, the resistance increases and the blood pressure increases. The vasomotor centre in the medulla when stimulated sends impulses via the sympathetic to the smooth muscle in the arteries, arterioles and veins which results in their constriction.
Anticodon is the series of three nucleotides on the transfer RNA molecule which recognizes and pairs with the specific codon on a messenger RNA molecule; it helps in controlling t
Explain saturated fatty acids Some of the more significant saturated fatty acids with their systematic and common names are listed in table, and some of the unsaturated fatty a
Use of repellents Avoidance and early removal of ticks are the first steps in prevention of Lyme disease. In highly endemic areas, when an engorged Ixodes scapularis tick is at
ABA - Dormancy Abscisic acid functions as an antagonist of all three promoters like IAA, GAS and Cytokinins. ABA nullifies the activity of GA, IAA and cytokinin right by a)
describe and compare reproduction in all the kingdoms except kingdom animalia
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Different areas of brain - HUMA N BRAIN DIFFEREN T AREAS OF BRAIN Note : - In brain glutemic acid metabolins is common In latemaria brain's size
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