- 1(current)
Q. No.Which of the following evolutionary transitions are correctly represented?
I. Transition from isogamy → anisogamy → oogamy in algae shows increasing sexual specialisation.
II. Development of heterospory in Selaginella marks beginning of precursor of seed habit.
III. Dependence on external water for fertilisation decreases from bryophytes → angiosperms.
IV. Sporophyte dominance decreases as we move from algae to angiosperms.
For the question posted above, select the correct option as your answer
1. I, II and III only
2. II and IV only
3. I and III only
4. I, II, III and IV
I. Transition from isogamy → anisogamy → oogamy in algae shows increasing sexual specialisation.
II. Development of heterospory in Selaginella marks beginning of precursor of seed habit.
III. Dependence on external water for fertilisation decreases from bryophytes → angiosperms.
IV. Sporophyte dominance decreases as we move from algae to angiosperms.
For the question posted above, select the correct option as your answer
1. I, II and III only
2. II and IV only
3. I and III only
4. I, II, III and IV
Subtopic: Algae |
59%
Level 3: 35%-60%
Please attempt this question first.
Hints
Algae are classified into different classes mainly on the basis of:
| 1. | Pigments, stored food, cell wall |
| 2. | Habitat, reproduction, size structure |
| 3. | Morphology, anatomy, life cycle |
| 4. | Nutrition, growth pattern, shape |
Subtopic: Algae |
87%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
- 1(current)
Q. No.
© 2026 GoodEd Technologies Pvt. Ltd.