STD 12 - 6. evolution — NEET STD 11 Science — Question

Simple epithelium is

Frog hibernate during

Which statement is correct for glomerular filtration rate (GFR)?
(i) The amount of the filtrate formed by the kidneys per minute is called glomerular filtration rate (GFR).
(ii) GFR in a healthy individual is approximately 125 ml/minute, i.e., 280 litres per day.
(iii) Glomerular filtration rate regulated by juxtaglomerular apparatus (JGA).
(iv) JGA is formed by cellular modifications in the distal convoluted tubule and the afferent arteriole at the location of their contact.
(v) A fall in GFR can activate the JG cells to release renin which can stimulate the glomerular blood flow and thereby the GFR back to normal.
(vi) Rennin which converts angiotensinogen in blood to angiotensin II and further to angiotensin I, which is a powerful vasoconstrictor, increases the glomerular blood pressure and thereby GFR.

Which of the following is associated with decrease in cardiac output?

Assertion: First form of life could have come from organic molecules.
Reason: Formation of diverse organic molecules occurs from inorganic constituents by chemical evolution.

According to the Darwin's theory of evolution, differences between the species occurs due to

The factor responsible for cirrhosis of liver is

It is part of male cockroach