91. ________ helps the eye to adjust the focal length of the lens.
92. Eustachian Tube is located in which part of human body?
93. Glomerulus and Bowman's capsule constitute
94. The kidneys are stimulated to produce renin
95. In mammals, an important role of excretion is played by ________
96. Nephron is related to which of the following system of human body?
97. Dialysis is used to perform the function of
98. Excretion is best described as the removal of
99. Islets of Langerhans are present in
100. Filtration of blood occur in
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