CSIR NET 2022 | Life Science: System Physiology Animals | 12 November

Mammary glands are modified:

The width of basilar membrane from the oval window in the cochlea that resonates at various sound frequencies:

Following information is given for a healthy kidney
(A) Glomerular hydrostatic pressure - 85 mm Hg

(B) Glomerular capillary colloid osmotic pressure - 40 mm Hg

(C) Hydrostatic pressure in the Bowman's capsule - 20mn Hg

The net filtration pressure will be

(A) In an experiment, 2mg of a substance 'A' dissolved in 4.5 ml sterile solvent was injected as a bolus into the femoral vein of an intact frog. It was observed that the frog's heart rate increased significantly.

(B) The same solution as in (a) when applied directly on the heart of the same frog after exposing the heart, the heart rate did not change.

(C) The same solution as in (a) when injected to an intact cat femoral vein, the heart rate did not change significantly.

From the above observations, which one of the following statements is most likely to be correct?

Humans have biconvex lens in the eyes. They can see accurately by focusing on the retina an image of an object situated at a distance say 25 meters, as well as near, say 25 cm. This is because the