What is hetrosporic?Breifly comment on it's singnificance Give two example of hetrosporic plant
Answers
Explanation:
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.
singnificance of Heterospory
The zygote develops into the future sporophyte. - The evolution of the seed habit is related to the retention of the megaspore. - Heterospory is thus considered an important step in evolution as it is a precursor to the seed habit. - Heterospory evolved first in pteridophytes such as Selaginella and Salvinia.
Two example of hetrosporic plant
Selaginella and Salvinia are two examples of heterosporous pteridophytes. These pteridophytes consist of two types of spores, large spores that germinate to produce female gametophyte and small spores germinate to produce male gametes.