Table of Contents
Why do bryophytes need to stay close to the ground?
They must absorb water directly from the soil or flowing over them. The lack of bundles to transport water and nutrients limits the height of bryophytes, generally keeping the largest under 8 inches. Mosses also are restricted to living in damp locations. Like all plants, mosses descend from green algae.
Why do bryophytes need water for fertilization?
Bryophytes though grow on soil but need water for sexual reproduction. The sperms of bryophytes are flagellated and eggs are non-motile. So, in order to accomplish fertilization sperm must be provided with water. So that sperm can whip its flagella in water and swim to egg to fertilize it.
Which is a reason bryophytes need regular access to water requiring them to live in moist environments?
Bryophytes must live in moist areas because they lack vascular tissue. Vascular tissue carries water and nutrients much more efficiently than can be carried by diffusion.
Which are the most plentiful plants on Earth today?
The most abundant and diverse plants on Earth are the angiosperms, the flowering plants. These range from dandelions to fruit trees, and all rely on…
Does moss grow close to the ground?
As a non-vascular plant, the body of moss has no roots; rather, it uses tiny threads to anchor itself to the stones, trees, or ground where it grows. Most species prefer shady ground, rock ledges, or tree trunks. Though moss prefers moist environments, it has adapted to survive periods of dry weather.
Do pteridophytes depend on water to reproduce?
Bryophytes have the plant body as haploid gametophyte. The sporophyte is a typical vascular plant drawing soil water through true roots. Hence, although bryophytes and pteridophytes both grow on soil and require water for fertilization, only bryophytes are called amphibians of plant kingdom.
Do Fern sperm need to swim in water to egg?
The vascular tissues in the more advanced ferns and “fern allies” are made up of xylem and phloem, which conduct water, nutrients, and food throughout the plant body. Their flagellated sperm must swim through water to reach the egg. So mosses and liverworts are restricted to moist habitats.