Excretory Products And Their Elimination Ques 12
12. A terrestrial animal must be able to
[2004]
(a) excrete large amounts of water in urine
(b) conserve water
(c) actively pump salts out through the skin
(d) excrete large amounts of salts in urine
Show Answer
Answer : b
Hints & Solutions
(b) Terrestial animals have limited access to water. Hence they have to secrete hypertonic urine and conserve water. Choices (c) and (d) are characteristics of marine animals who need to overcome the problem of preventing entry of salts and loss of water. Choice (a) is characteristic of fresh water animals.
BETA
