Question

Sketch,label and describe fern,spirogyra,marchantia in brief

Answer 1

Answer:

fern:-

A fern (Polypodiopsida or Polypodiophyta) is a member of a group of vascular plants (plants with xylem and phloem) that reproduce via spores and have neither seeds nor flowers. ... Most ferns are leptosporangiate ferns. They produce coiled fiddleheads that uncoil and expand into fronds.

marchantia:-

The Marchantia shows differentiation into two layers: an upper photosynthetic layer with a well-defined upper epidermis with pores and a lower storage layer. The thallus features tiny cup-like structures called gemma cups, containing gemmae, small packets of tissue that are used for asexual reproduction.

spirogyra:-

Spirogyrais a filamentous green alga that is seen in fresh water bodies such as ditches, ponds and lakes. It is commonly called water silk. Spirogyra measures approximately 10 to 100μm in width and may stretch centimetres long. Each filament is unbranched and consists of cylindrical cells placed end to end.

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