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Q. What are the merits of the closed circulatory system over the open circulatory system?
The closed circulatory system is more resourceful since blood circulates only inside blood vessels it can do it with more pressure reaching beyond distances between the organs where the peripheral tissues and hematosis happen. Additionally the circulatory speed also heightens making possible more oxygen supply to great consuming tissues like the muscle tissues that then can perform faster movements. Animals with an open circulatory system with the exception of insects that do gas exchange independently from the circulation are usually slower and have a low metabolic rate.
Q. After digestion the next step is absorption done by cells of the mucous membrane of the intestine. For this task a large absorption surface is an advantage. How is it possible i
Digestion of proteins Digestion of proteins is initiated in the stomach by pepsin. Pepsin acts upon food proteins and converts them to proteoses and peptones whic
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Branemark's Theory of Osseointegration In 1952, Swedish orthopedic surgeon, Branemark, conducted microscopic studies done in situ of the bone marrow in rabbit's fibula with in
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