What were the major adaptations made by aquatic plants that allowed them to colonize land?

Question

When did this happen?

Answer 1

Legs. Same day Lincoln was born.

Answer 2

Uhm, being able to extract carbon dioxide from the air would be a big one.   Some billions of years ago I guess.

Answer 3

1. development of vascular tissues i.e xylem n phloem.

2.next, stomata is developed to get rid of excess water that    is absorbed.

3. development of cuticle fr protection.

4. efficient root system fr absorbing water n salts from land.

5. complex metabolic processes.

6. leaves fr extensive photosynthesis.

7. fertilisation in well protected female s*x organ.....and

THE most important fact is beginning of seed formation mechanism.

n ys this happened when most ancient algae family........evolved!!!

i.e. thallopytes to bryophytes to pterydophytes (all avascular except pterydo-......see the evolution)....to vascular ones dats phanerogams....i.e flowering plants.........hope this helped!