Advertisements
Advertisements
प्रश्न
Thallophyta, bryophyta and pteridophyta are called as ‘Cryptogams’. Gymnosperms and Angiosperms are called as ‘phanerogams’. Discuss why? Draw one example of Gymnosperm.
उत्तर
Thallophyta, Bryophyta ‘and Pterido¬phyta are called “cryptogams”(Kntyptos-hidden, gamos-to marry) as all these are seedless plants and have inconspicuous reproductive organs.
Gymnosperms and Angiosperms are collectively called “phanerogams” (Phaneros-visible, gamos-to marry) as both the groups have seeded plants and conspicuous reproductive organs.
Fig. A: Female Cycas plant
B: Male Cycas plant
APPEARS IN
संबंधित प्रश्न
Floridian starch is a reserve food material of
An example for colonial form of algae is
Brown algae belongs to ______ class.
In polypetalae, the petals are free.
Pinus is a closed seeded plant.
Assertion (A): Blue green algae are prokaryotes.
Reason (R): They do not have a true nucleus.
______ is a blue-green algae.
Polvsiohonia is a ______ alga.
______ is an edible algae.
Classification of algae was given by ______.
