1. Using both the life cycle and the plant anatomy as starting points, explain w

Question

1. Using both the life cycle and the plant anatomy as starting points, explain why bryophytes have not fully completed the “conquest of land” and are still dependent on the presence of water in their environment.

2. What selective advantages did the appearance of lignin give vascular plants?

3. What selective advantages are derived from the production of seeds?

4. What is the advantage of having a dominant sporophyte generation?

5. What adaptations of conifers allow them to dominate the landscape of the boreal forest (taiga)?

6.Why are angiosperms the dominant plants today? What advantages do they have over other plant types?

Explanation / Answer

1. Bryophytes have no true vascular system, they reproduce through spores as they do not produce flowers or seeds. Thus, bryophytes are still dependent on the presence of water in their environment and have not fully completed the “conquest of land.”

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