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Question
Cycas has two cotyledons but is not included in angiosperms because of:
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Solution
The correct option is D Naked ovules
Gymnosperm seeds are multicotyledonous, the number of cotyledons ranging from 2-24. Angiosperm seeds have only one or two cotyledons. So, if a seed has two cotyledons like Cycas, it may belong to Gymnosperms or Angiosperms.
In Cycas, a gymnosperm the seed does not occur inside a fruit but lies naked or exposed on the surface of megasporophyll, before fertilization and the formation of the seed.
In angiosperms, the ovules are enclosed in ovaries and seeds in fruits.
Gymnosperm seeds are multicotyledonous, the number of cotyledons ranging from 2-24. Angiosperm seeds have only one or two cotyledons. So, if a seed has two cotyledons like Cycas, it may belong to Gymnosperms or Angiosperms.
In Cycas, a gymnosperm the seed does not occur inside a fruit but lies naked or exposed on the surface of megasporophyll, before fertilization and the formation of the seed.
In angiosperms, the ovules are enclosed in ovaries and seeds in fruits.
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