Question

Define the following terms:

i. Lichens

ii. Cryptogamae

iii. Phanerogams

Answer 1

i.)LICHEN IS A DUAL NATURED ORGANISM WHICH LIVES WITH DIFFRENT ORGANISM LIKE CYNOBATERIA OR ALGAE.THEY ARE ALWAYS FOUND IN COMMUNITIES AND EVEN USED IN PREPARING LITMUS PAPER.
ii. Cryptogams are non-flowering and non-seed bearing plants. They are divided into bryophyte, pteridophyta and thallophyta.
iii.Phanerogams are flowering or seed-bearing plants. They are the most advanced plants. They possess well-developed roots, stems, leaves and flowers. Phanerogams are divided into two main groups: Gymnosperms (naked-seed plants) and Angiosperms(hidden-seed plants)

Answer 2

Hey friend

Lichens refers to the symbiotic association of amoeba and fungi.
In this association amoeba component is called phycobiont and fungal component is called mycobiont.


Cryptogamae -- These are seedless plants which reproduce by spore formation.They are also called as fllwerless plants.


Phanerogame -- It is just opposite of crytogame.They have seeds so also called seeded plants.


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