Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
Which is the dominate phase in pteridophyte?
Sporophyte.
Sporophyte.
See lessHow are mosses considered ecologically important?
Mosses, along with lichens are the first organism to colonise rocks, hence are ecologically important to develop an ecosystem in bare places.
Mosses, along with lichens are the first organism to
See lesscolonise rocks, hence are ecologically important to
develop an ecosystem in bare places.
Which specialised structures are present in liverworts for asexual reproduction?
Gemma cup.
Gemma cup.
See lessA prothallus is
Gametophyte is a free-living, small thalloid structure called prothallus. In most ferns, the prothallus is green and autotrophic.
Gametophyte is a free-living, small thalloid structure
See lesscalled prothallus. In most ferns, the prothallus is green
and autotrophic.
A prothallus is
(i) a structure in pteridophyte formed before the thallus develops (ii) a sporophytic free-living structure formed in pteridophyte (iii) a gametophytic free-living structure formed in pteridophytes (iv) a primitive structure formed after fertilisation in pteridophyte.
(i) a structure in pteridophyte formed before
See lessthe thallus develops
(ii) a sporophytic free-living structure formed
in pteridophyte
(iii) a gametophytic free-living structure formed
in pteridophytes
(iv) a primitive structure formed after
fertilisation in pteridophyte.
State the ploidy of gametophyte and sporophyte of a bryophytic plant.
Cells of gametophyte have (n) number of chromosomes whereas sporophyte have (2n) number of chromosome
Cells of gametophyte have (n) number of chromosomes
See lesswhereas sporophyte have (2n) number of chromosome
Give one example each of Chlorophyceae, Phaeophyceae and Rhodophyceae.
Chlorophyceae Spirogyra, Phaeophyceae Sargassum and Rhodophyceae Porphyra.
Chlorophyceae Spirogyra, Phaeophyceae Sargassum
See lessand Rhodophyceae Porphyra.
Holdfast, stipe and frond constitute the plant body in case of
The lamina of Phaeophyceae members large sized body with differentiation of holdfast, stipe and lamina.
The lamina of Phaeophyceae members large sized body
See lesswith differentiation of holdfast, stipe and lamina.
In which algae reserve food is in the form of laminarin?
Brown algae (Phaeophyceae).
Brown algae (Phaeophyceae).
See lessThe plant body in higher plants is well-differentiated and well-developed. Roots are the organs used for the purpose of absorptions. What is the equivalent of the roots in the less developed lower plants?
Rhizoids.
Rhizoids.
See less