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On the phylogenetic tree, where should the origin of fruits be placed? See Secti

ID: 142794 • Letter: O

Question

On the phylogenetic tree, where should the origin of fruits be placed? See Section 28.3.

At the base of land plants At the base of vascular plants At the base of the angiosperms At the base of the clade that contains gymnosperms and angiosperms Glaucophyta (glaucophyte algae) PLANTAE Rhodophyta (red algae) GREEN PLANTS GREEN ALGAE Ulvophyceae (ulvophytes) Charophyceae (stoneworts) Coleochaetophyceae (coleochaetes) Zygnematophyceae (conjugating algae) Chloroplasts containing chlorophyll a +b and -carotene Common ancestor to all green plants LAND PLANTS NONVASCULAR PLANTS Freshwater habitat Hepaticophyta (liverworts) Bryophyta (mosses) Anthocerophyta (homworts) Ability to live on land VASCULAR PLANTS SEEDLESS PLANTS Bacteria Archaea Lycophyta (club mosses) Psilotophyta (whisk fems) Pteridophyta (ferns) Equisetophyta (horsetails) Eukarya LANTAEVascular tissu SEED PLANTS GYMNOSPERMS Ginkgophyta (ginkgoes) Cycadophyta (cycads) Cupressophyta (redwoods et al.) Pinophyta (pines et al.) Gnetophyta (gnetophytes) Seeds ANGIOSPERMS Anthophyta (angiosperms)

Explanation / Answer

At the base of angiosperms.

Both angiosperms and gymnosperms produces seeds , but in gymnosperms the seeds are not protected . The seeds are naked and present on scales or leaves . These type of seeds are called comes .

Angiosperms on the other hand , are the first flowering plants . They produces flowers and fruits ,which is their definitive feature . The seeds are protected in ovary ( usually a fruit ) .

So the origin of the fruits starts at the angiosperms .

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