Question

In mosses, sexual reproduction cannot complete without water. A moss plant is unable to complete its life-cycle in a dry environment. State two reasons.

Answer 1

Hint: Mosses are the small non-flowering plants. They typically form dense clumps in a dump location. These are non-vascular plants. Some of them have connective tissues on them. They conduct water and nutrients in a limited way. Here, the reason why mosses cannot sexually reproduce without water and their life-cycle is unable to complete in a dry environment is to be analyzed.

Complete answer:
Mosses are those plants which come under the division Bryophyta. There are almost 12,000 species that come under this category. Those plants also sexually reproduce but in a different way. That is, it can reproduce only by using water. And, these plants cannot complete their life-cycle in a dry environment. The following are classification, scientific name, kingdom and rank that comes under the mosses. They are as follows:

HIGHER CLASSIFICATION	Plant
SCIENTIFIC NAME	Bryophyta
KINGDOM	Embryophyte
BIOLOGICAL RANK	Division

So, here are some reasons why they can’t get involved in these kinds of situations. They are as follows:
As we already know, these plants come under bryophytes. These are non-vascular so that the xylem and phloem, which are known as the connective tissues, persist with a lack of water.
These are the same as liverworts. Mostly, they live in the damp and marshy land. They cannot survive in the dry regions. When the area is too dry, those plants can become dehydrated and they will cherish. These are found in the deep shade environment.
The sperm of mosses are fully flagellate. This needs water to swim the eggs and that leads to sexual reproduction.
Mosses cannot tolerate periods and direct sunlight in total desiccation. Many of the liches that involve here are broken up into fragments when they are dry and dispersion of seeds through wind action.
These are the reasons why mosses need a dry environment to live and why mosses need water for reproduction. These plants are found mostly on the north side in our country.

Note: Mosses have gametophytes with typical leaf-like structures. The leaves are totally different when compared to other plants. The cells present here are haploid. These cells are thick only at the midrib. These are the most abundant plants in the Arctic and Antarctic area. These are also used as the fuel when they are in dry condition.