Match the organisms in Column I with their habitats in Column II: Column I (a) Halophiles (b) Thermoacidophiles (c) Methanogens (d) Cyanobacteria Column II (i) Hot springs (ii) Aquatic environment (iii) Guts of ruminants (iv) Salty area Select the correct answer from the options given below:
Answer: (A) (a)-(iv), (b)-(i), (c)-(iii), (d)-(ii). Answer: (A) (a)-(iv), (b)-(i), (c)-(iii), (d)-(ii) Solution: Among archaebacteria, halophiles live in extreme salty areas (iv), thermoacidophiles in hot springs (i), and methanogens in the gut of ruminants (iii).
- A.(a)-(iv), (b)-(i), (c)-(iii), (d)-(ii)✓
- B.(a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)
- C.(a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)
- D.(a)-(ii), (b)-(iv), (c)-(iii), (d)-(i)
Correct Answer
(A) (a)-(iv), (b)-(i), (c)-(iii), (d)-(ii)
Solution & Explanation
Answer: (A) (a)-(iv), (b)-(i), (c)-(iii), (d)-(ii) Solution: Among archaebacteria, halophiles live in extreme salty areas (iv), thermoacidophiles in hot springs (i), and methanogens in the gut of ruminants (iii). Cyanobacteria (blue-green algae) are freshwater/marine/terrestrial, i.e. aquatic environment (ii). This matches option (A). NCERT Reference: NCERT Class XI, Biological Classification, p.13, lines 11-16 — "extreme salty areas (halophiles), hot springs (thermoacidophiles)"