Cycas and Adiantum resemble each other in having

Write a note on the economic importance of algae and gymnosperms.

Primary development of male and female gametophytes takes place in the sporangia itself in

Into how many groups are the non-flowering plants (Cryptogams) classified?

Which of the following is/are grouped under phanerogams?

Read the following statements and answer the question which follows them:
$(1)$ In liverworts,mosses,and ferns,gametophytes are free-living.
$(2)$ Gymnosperms and some ferns are heterosporous.
$(3)$ Sexual reproduction in $Fucus$,$Volvox$,and $Albugo$ is oogamous.
$(4)$ The sporophyte in liverworts is more elaborate than that in mosses.
$(5)$ Both $Pinus$ and $Marchantia$ are dioecious.
How many of the above statements are correct?