| Adaptation | Example |
| Allen's rule | Mammals from colder climates generally have shorter ears and limbs (extremities) to minimize heat loss. Example: Polar seal |
| Physiological adaptation | Kangaroo rat is capable of meeting all of its water requirements through its internal fat oxidation where water is released as a by-product. It can also concentrate its urine so that a minimal volume of water is used to remove excretory products. Thus, it is an example of physiological adaptation. |
| Behavioural adaptation | Desert lizards lack the physiological ability to cope with extreme temperatures but manage the body temperature by behavioural means. |
| Biochemical adaptation | A large variety of marine invertebrates and fishes are adapted biochemically to survive great depths in the ocean where the pressure (called crushing pressure) could be >100 times the normal atmospheric pressure. |
Match List-I with List- II. List-I List- II (a) Allen's Rule (i) Kangaroo rat (b) Physiological adaptation (ii) Desert lizard (c) Behavioural…
NEET UG 2021 — Zoology Organisms and Populations
2021mcqeasy
Match List−I with List−II.
| List−I | List−II | ||
| (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 |
Official previous-year question
Held on 30 Apr 2021 · Verified 9 Jul 2026.
Options
- A
(a)−(iv);(b)−(ii);(c)−(iii);(d)−(i)
- B
(a)−(iv);(b)−(i);(c)−(iii);(d)−(ii)
- C
(a)−(iv);(b)−(i);(c)−(ii);(d)−(iii)
- D
(a)−(iv);(b)−(iii);(c)−(ii);(d)−(i)
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