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Explain the origin of the name “gymnosperm.”
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- Briefly explain the term gymnosperms.Describe the orders ANGIOSPERMS-EUDICOTS : ERICALES, GENTIANALES, LAMIALES, SOLANALES, APIALES AND ASTERALES in terms of plant habit, reproductive type (monoecius/dioecius), leaf type, leaf shape, floral characteristics, fruit morphology, seed size/shape, and other distinct features.Describe the orders under the gymnosperms (Cycadales, Ginkgoales, Coniferalesn and Gnetales) in terms of plant habit, reproductive type (monoecius/dioecius) leaf type, leaf shape, seed size/shape, special seed characteristics, cone morphology and other distinct features.
- Both gymnosperm and angiosperm bear seed ,then why are they classified seperatedly?what dicot group to diverge from the gymnosperms?Differentiate the reproductive structures and processes of the four plant representatives according to the categories provided. Bryophye Pteridophyte Gymnosperm Angiosperm TWO distinguishing characteristics of fertilization TWO distinguishing characteristics of embryogenesis
- Sketch a seed of a gymnosperm and of a monocot. Label the embryo, seed coat, and nutritive tissue (giving its specific name). Indicate the ploidy of each structure (haploid, diploid, or triploid).Are gymnosperms heterosporous or homosporous? Explain what this means. What are the evolutionary “advances” represented by the seed?Name and briefly describe the four phyla of gymnosperms.