Assertion(A): | Archaebacteria can survive in extreme harsh habitats. |
Reason(R): | Archaebacterial cell wall has peptidoglycan that helps them survive in harsh habitats. |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A) |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A) |
3. | (A) is True but (R) is False |
4. | (A) is False but (R) is True |
(i) | It was given by George Bentham and Joseph Dalton Hooker |
(ii) | It was based on natural affinities among the organisms |
(iii) | It takes into account not only the external features but also internal features |
(iv) | Internal features like ultrastructure, anatomy, embryology and phytochemistry are also considered |
(v) | Evolution is also taken into account |