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Assertion: Selaginella and salvinia are ...

Assertion: Selaginella and salvinia are homosporus.
Reason: Ovules of gymosperms are enclosed withini the ovaries.

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Which of the following statements is correct? 1. Stems are usually unbranched in both Cycas and Cedrus. 2. Horsetails are gymnosperms. 3. Selaginella is heterosporous, while salvinia is homosporous. 4. Ovules are not enclosed by ovary wall in gymnosperms.

I. In Rhodophyceae, food is stored as mannitol and laminarin II. Ovules of Gymnosperms are not enclosed by ovary wall III. Salvinia is heterosporous IV. In diplontic life cycle, free living gametophyte represents dominant phase Of the above statements :

I. In Rhodophyceae, food is stored as mannitol and laminarin II. Ovules of Gymnosperms are not enclosed by ovary wall III. Salvinia is heterosporous IV. In diplontic life cycle, free living gametophyte represents dominant phase Of the above statements :