the charatictics feature of cryptogamae is
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Answer:
Cryptogams are lower plants. Flowers, seeds, and fruits are not bear by these plants. All plants that do not bear seed are cryptogams. The process of their reproduction can be through vegetatively, sexually, and asexually.
Answer:
Following are the important features of cryptogams:
These are lower plants.
These bear no flowers, seeds, and fruits.
These reproduce vegetatively, asexually and sexually.
Vegetative reproduction takes place cell division or fragmentation.
Asexual reproduction takes place by the means of spores.
Sexual reproduction takes place by fusion of male and female gametes. It can be of an isogamous, anisogamous and oogamous In isogamy, gametes of similar size, shape, and behavior fuse together. It is seen in primitive cryptogams. In anisogamy, the two fusing gametes slightly differ in size and behavior. In oogamous type, the female gamete is large and non-motile while the male gamete is smaller in size and motile. In oogamy, the female gamete is known as megagamete and the male gamete is known as microgamete, antherozoids or spermatozoa. Oogamy takes place in advanced cryptogams.
Advanced cryptogams such as liverworts, mosses, pteridophytes, and algae undergo alternation of generation i.e. these go through two phases to complete their life cycle. The two phases are a sporophytic phase and gametophytic phase.
Sporophytic phase is characterized by asexual reproduction while in gametophytic phase sexual reproduction takes place.
The sporophytic phase is the diploid stage while the gametophytic phase is the haploid stage.
The two phases occur in alternation i.e. one after the other.
Explanation:
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