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Q How different is the amphibian heart from the fish heart?
The fish heart has only two chambers, a ventricle and an atrium, and the blood that comes to it is purely venous.
In amphibians there are three heart chambers a second atrium is present and there is arterial blood coming from the lungs; in these animals the heart has two atria one that gets blood from the body and other that gets blood from the lungs and one ventricle arterial blood mixes with venous blood within the ventricle which in turn pumps the blood to the lungs and to the systemic circulation.
Tracheoles - Respiration The tracheal system consists of an air filled system of tubes - the tracheal tubes that branch repeatedly until they become fine as capillaries, and
advantages of spread plate method over pour plate method
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Q. Causes of reduced Serum HDL levels? Possible causes of reduced Serum HDL levels: - Cigarette smoking - Hypertriglyceridemia - Obesity - Genetic factors - Lack
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Define Determinants of Food Security - Food Access? Food access is linked to its affordability. Food access is ensured when households and all individuals within them have adeq
Congenital disorders Poor fertilizing quality of semen could be due to impaired spermatogenesis. When such a condition is due to genetic congenital causes the treatment is not
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