Stuck on Biology Question?

[dillanjerome]

Hello, this is my last question on my Biology homework and I was wondering if someone can help me out.

Here's the question:

Why do you think vascular plants are more successful as land plants than are nonvascular plants?

[ATP-Man]

Bryophytes are plants that lack vascular tissue and require environmental water to reproduce. Vascular plants are the opposite. These plants usually form mats of horizontally growing tissue. Vascular plants grow upright and can live in most all environments. In nonvascular plants photosynthesis occurs in the stem-like structures above the matted plant bodies. They undergo an alternation of generations with the haploid generation being the dominant form of this cycle. The sporophytes are generally smaller and depend on the gametophyte for water and protection. Vascular plants use leaves to carry on photosynthesis and their sporophyte stage is larger.