In gymnosperms, spores are produced within sporangia that are borne on sporophylls which are arranged…….along an axis to form lax or cones.

Read the following statements w.r.t. gymnosperms (a)Leaves in gymnosperms have thick cuticle and sunken stomata. (b)Zamia is the tallest gymnosperm. (c)Ginkgo biloba have fan shaped leaves (d)Microsporophyll are compactly arranged on central axis to form a microsporangia. (e) Two kinds of spores are produced within sporangia that are borne on male strobili

Which type of spores are produced by some pteridophytes and gymnosperms?

read the following statement and choose the correct option. A. microspore and megaspores are produced in the same lax in gymnosperm. B. Lax represents compact strobillus which bears both microsporophylls and megasporophytis together

A : Microspores and megaspores are produced in same lax in gymnosperms. R : Lax represents compact strobilus which bear microsporophyll and megasporophyll.

A : Microspores and megaspores are produced in same lax in gymnosperms. R : Lax represents compact strobilus which bear microsporophyll and megasporophyll.

Complete the sentences and explain them: (Angiosperms, gymnosperms, spores, bryophyta, thallophyta, zygote) Male and female flowers of …….are borne on different sporophylls of the same plant.

Assertion: In gymnosperms development of male gametophyte (pollen grain) takes place within the microsporangia. Reason: Gymnosperms are heterosporous plants in which spores show in situ germination.