problem1) Answer all the problems:
a) describe alternation of generation.
b) What do you mean by Laplo-diplo-biontic life cycle?
c) prepare down characteristics of seed plants.
d) prepare down economic importance of Gymnosperms
e) What do you mean by endo-sperm?
problem2) describe the life cycle of selaginella in detail.
problem3) prepare down significant characteristics of psilopsida.
problem4) Describe the distribution and structure of equisetum.