Plant kingdom

Assertion : Heterospory and retention of female gametophyte are responsible for origin of seed habit in Selaginella sp. Reason : Psilotum $\mathrm{sp}$. can be regarded as a living fossil.

Which of the following are homosporous?

Select the incorrect statement.

Assertion : Petroplants produce large amount of latex. Reason: The latex contains long chain hydrocarbons.

Assertion : Red algae contribute in producing coral reefs. Reason: Some red algae secrete and deposit calcium carbonate over their walls.

Pick the correct group consisting of all genera exhibiting homospory.

Select one of the following pairs of important features distinguishing Gnetum from Cycas and Pinus and showing affinities with angiosperms.

Assertion : Sphagnum is slowly carbonised, compressed and fossilised over thousands of years to produce a dark spongy mass called peat. Reason : Peat helps to keep soil porous and it also improves water holding capacity…

Which of the following are homosporous pteridophytes? I. Selaginella II. Lycopodium III. Salvinia IV. Equisetum

What is the correct sequence of the formation of female gametophyte in angiosperms?

Which of the following groups of algae produces algin?

Which of the following genera is associated with coralloid roots?