Consider the following water conservation mechanisms and select the correct options regarding Kangaroo rats.
A. Nasal heat exchange
B. Dependence on metabolic water
C. Highly hypertonic urine
D. Living more on a protein-rich diet
A. Nasal heat exchange
B. Dependence on metabolic water
C. Highly hypertonic urine
D. Living more on a protein-rich diet
Important Questions on Excretory Products and their Elimination
Reason (R): Due to low atmospheric pressure at high altitude, the body does not get sufficient oxygen.
In the light of the above statements, choose the correct answer from the options given below.
Match List with List.
| List | List | ||
| (a) | Allen's Rule | (i) | Kangaroo rat |
| (b) | Physiological adaptation | (ii) | Desert lizard |
| (c) | Behavioural adaptation | (iii) | Marine fish at depth |
| (d) | Biochemical adaptation | (iv) | Polar seal |
Match the following:
| Set-I | Set-II | ||
| (A) | Endosmosis | (I) | High altitude adaptation |
| (B) | Exosmosis | (II) | Desert adaptation |
| (C) | Metabolic water | (III) | Problem for fresh water animal |
| (D) | Increase in the production | (IV) | Problem for marine animals |
The correct match is
Statement (S): Very small animals are rarely found in the polar regions.
Reason (R): Small animals have a larger surface area relative to their volume and tend to lose body heat.
The correct answer is
Hydrilla and Limnophila are examples for the following categories respectively,
i) Free-floating hydrophyte and rooted hydrophyte with floating leaves
ii) Submerged, suspended hydrophyte
iii) An amphibious plant
iv) Submerged, suspended hydrophyte and a free-floating hydrophyte
v) Submerged, rooted hydrophyte and an amphibious plant
The correct combination is
Reason (R): To enhance transpiration in desert plants
Relate Column I with Column II with regard to predatory behaviour
| Column-I | Column-I | ||
| Calotropis | p. | Invertebrates | |
| Pisaster | q. | Distasteful | |
| Monarch butterfly | r. | Cryptically coloured | |
| Frogs | s. | Cardioglycoside |
