DENDROLOGY AND SOCIETY
FAMILIES OF ANGIOSPERMS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Vascular plants
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Sporophyte generation is dominant
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Produce seed
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Has true roots, stems and leaves
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Detailed explanation-1: -1. Seed production: Gymnosperms are more advanced than Pteridophyta because they produce seeds, which are enclosed in a protective structure called the ovule.
Detailed explanation-2: -Unlike bryophytes and pteridophytes, in gymnosperms the male and the female gametophytes do not have an independent free-living existence. They remain within the sporangia retained on the sporophytes. Pteridophytes have free living, photosynthetic thalloid gametophyte called prothallus.
Detailed explanation-3: -Bryophytes are adapted to grow in amphibious environments; Pteridophytes are adapted to terrestrial environments which are a moist and shady while, Gymnosperms are fully adapted to terrestrial environments.
Detailed explanation-4: -Answer. Explanation: In pteridophytes both microspores and megaspores are released from their respective sporangia, whereas in gymnosperms, megaspore is permanently retained.