Question

The earliest land plants were liveworts, misses and frem. Why do you think that these plants were successful in the humid and most ancient environment?

Answer 1

These plants are small that they can rely on diffusion to move water in and out of the plant. They also need a humid environment to reproduce. Their flagellated sperm swims through water to reach the egg. So mosses, frrm and liverworts are restricted to humid environments.