Question

1. What is heterospory? Briefly comment on its significance. Give two examples.​

Answer 1

Answer:

Heterospory is the production of spores of two different sizes and sexes by the sporophytes of land plants. The smaller of these, the microspore, is male and the larger megaspore is female.

Examples of heterospory are Selaginella, Salvinia and Marsilea, etc.

Answer 2

Answer:

The phenomenon of heterospory lead to the reduction of gametophyte, in situ germination of spores, retention of megagametophyte in the megasporangia and finally to the seed development. Examples of heterospory are Selaginella, Salvinia and Marsilea, etc.

Explanation: