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Which of the following statements is correct ?
Stems are usually unbranched in both Cycas and Cedrus.
Ovules are not enclosed by ovary wall in gymnosperms.
Horsetails are gymnosperms.
Selaginella is heterosporous, while Salvinia, is homosporous.
Which one is wrongly matched ?
Unicellular organism - Chlorella
Uniflagellate - Polysiphonia
Gemma cups - Marchantia
Bitlagellate zoospores - Brown algae
Which of the following statements is correct ?
Stems are usually unbranched in both Cycas and Cedrus.
Ovules are not enclosed by ovary wall in gymnosperms.
Horsetails are gymnosperms.
Selaginella is heterosporous, while Salvinia, is homosporous.
Which one is wrongly matched ?
Unicellular organism - Chlorella
Uniflagellate - Polysiphonia
Gemma cups - Marchantia
Bitlagellate zoospores - Brown algae
From evolutionary point of view, retention of the female gametophyte with developing young embryo on the parent sporophyte for some time, is first observed in
Liverworts
Mosses
Pteridophytes
Gymnosperms
From evolutionary point of view, retention of the female gametophyte with developing young embryo on the parent sporophyte for some time, is first observed in
Liverworts
Mosses
Pteridophytes
Gymnosperms
Conifers are adapted to tolerate extreme environmental conditions because of
Presence of vessels
broad hardy leaves
superficial stomata
thick cuticle