Pteris differs from Funaria in having

Which of the following groups is correct for seed-bearing plants (Spermatophytes)?

Which is the most important group of plants on Earth in terms of ecological and economic significance?

Which of the following statements is correct?

Read the following statements and answer the question based on them:
$(1)$ In liverworts,mosses,and ferns,the gametophyte is 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 in mosses.
How many of the above statements are correct?

What is the main plant body of Bryophytes and Pteridophytes,respectively?