Question:
Thallophyta, bryophyta and pteridophyta one called "cryptogams." Gymnosperms and angiosperns are called "phanerogams". Discuss why ? Draw one example of gymnosperm. (CCE 2011)
Solution:
(a) Thallophyta, bryophyta and pteridophyta are called cryptogams because they are seedless and possesss inconspicuous or hidden reproductive organs.
(b) Gymnosperms and angiosperms are called phanerogams as they have conspicuous reproductive organs with seeds containing an embryo and reserve food.
(c)