Pteridophyta do not have : -Science

Pteridophyta do not have : -Science
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Pteridophytes are vascular plants and have leaves (known as fronds), roots and sometimes true stems, and tree ferns have full trunks. Examples include ferns, horsetails and club-mosses. ... Pteridophytes do not have seeds or flowers either, instead they also reproduce via spores.
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Companion cells of phloem are found in – (1) Gymnosperms (2) Bryophyta (3) Pteridophyta (4) Angiosperms

Description : Companion cells of phloem are found in – (1) Gymnosperms (2) Bryophyta (3) Pteridophyta (4) Angiosperms

Last Answer : (4) Angiosperms Explanation: Only in angiosperms are sieve tubes and companion cells found in the plaloern. In other vascular plants, parenchyma cells function in the same way as companion cells (that ... living protoplasm), but they are not derived from the same mother cell as the sieve element.

The gametophyte is called prothallus in (1) Pteridophyta (2) Bryophyta (3) Sperrnatophyta (4) Thallophyta

Description : The gametophyte is called prothallus in (1) Pteridophyta (2) Bryophyta (3) Sperrnatophyta (4) Thallophyta

Last Answer : (1) Pteridophyta Explanation: Prothallus is usually the gametophyte stage in the life of a fern or other pteridophyte. The prothallium develops from a germinating spore. It is a short-lived and inconspicuous heart-shaped structure.

Vessels are found in (a) all angiosperms and some gymnosperm (b) most of angiosperms and few gymnosperms (c) all angiosperms, all gymnosperms and some pteridophyta (d) all pteridophyta.

Description : Vessels are found in (a) all angiosperms and some gymnosperm (b) most of angiosperms and few gymnosperms (c) all angiosperms, all gymnosperms and some pteridophyta (d) all pteridophyta.

Last Answer : (b) most of angiosperms and few gymnosperms

Vessels are found in (a) all angiosperms and some gymnosperm (b) most of angiosperms and few gymnosperms (c) all angiosperms, all gymnosperms and some pteridophyta (d) all pteridophyta.

Description : Vessels are found in (a) all angiosperms and some gymnosperm (b) most of angiosperms and few gymnosperms (c) all angiosperms, all gymnosperms and some pteridophyta (d) all pteridophyta.

Last Answer : (b) most of angiosperms and few gymnosperms

126.Plant group with largest ovule, largest tree and largest gametes is (a) gymnosperm (b) angiosperm (c) bryophyta (d) pteridophyta.

Description : 126.Plant group with largest ovule, largest tree and largest gametes is (a) gymnosperm (b) angiosperm (c) bryophyta (d) pteridophyta.

Last Answer : a) gymnosperm

Which one is a wrong statement? (a) Haploid endosperm is typical feature of Gymnosperms. (b) Brown algae have chlorophyll a and c and fucoxanthin. (c) Archegonia are found in Bryophyta, Pteridophyta and Gymnosperms. (d) Mucor has biflagellate zoospores

Description : Which one is a wrong statement? (a) Haploid endosperm is typical feature of Gymnosperms. (b) Brown algae have chlorophyll a and c and fucoxanthin. (c) Archegonia are found in Bryophyta, Pteridophyta and Gymnosperms. (d) Mucor has biflagellate zoospores

Last Answer : (d) Mucor has biflagellate zoospores

The plant group that produces spores and embryo but lacks vascular tissues and seeds is (a) Pteridophyta (b) Rhodophyta (c) Bryophyta (d) Phaeophyta.

Description : The plant group that produces spores and embryo but lacks vascular tissues and seeds is (a) Pteridophyta (b) Rhodophyta (c) Bryophyta (d) Phaeophyta.

Last Answer : (c) Bryophyta

Which of the following plant kingdom is called ‘amphibians’? (a) Pteridophyta (b) Thallophyta (c) Tracheophyta (d) Bryophyta

Description : Which of the following plant kingdom is called ‘amphibians’? (a) Pteridophyta (b) Thallophyta (c) Tracheophyta (d) Bryophyta

Last Answer : (d) Bryophyta

Commelina benghalensis bearing shortlived blue coloured flowers is a a). Monocot b). Dicot c). Spermatophyte d). Pteridophyta

Description : Commelina benghalensis bearing shortlived blue coloured flowers is a a). Monocot b). Dicot c). Spermatophyte d). Pteridophyta

Last Answer : a). Monocot

Rhynia is a a. Fungi b. Lichen c. Pteridophyta d. None of the above

Description : Rhynia is a a. Fungi b. Lichen c. Pteridophyta d. None of the above

Last Answer : c. Pteridophyta

Companion cells of phloem are found in (1) Gymnosperms (2) Bryophyta (3) Pteridophyta (4) Angiosperms

Description : Companion cells of phloem are found in (1) Gymnosperms (2) Bryophyta (3) Pteridophyta (4) Angiosperms

Last Answer : Angiosperms

The gametophyte is called prothallus in (1) Pteridophyta (2) Bryophyta (3) Spermatophyta (4) Thallophyta

Description : The gametophyte is called prothallus in (1) Pteridophyta (2) Bryophyta (3) Spermatophyta (4) Thallophyta

Last Answer : Pteridophyta