Assertion (A) : The basic filtration unit in the kidneys, like in the lungs, is a cluster of very…
Assertion (A) : The basic filtration unit in the kidneys, like in the lungs, is a cluster of very thin-walled blood capillaries.
Reason (R) : Each capillary cluster in the kidney is associated with the cup-shaped end of a coiled tube called Bowman's capsule.
Solution
Both A and R are true but R is not the correct explanation of A
10 (i) To freeze the CFC production at 1986 levels.
(ii) Ozone shields the earth’s surface from harmful UV radiations.
11 • Aerobic Respiration
• Complete breakdown of glucose takes place in presence of oxygen
releasing more energy.
12 I. (i) 2-chambered
(ii) Amphibians/Reptiles
(iii) Double circulation ½x3
II. Double circulation