Biology MCQs

Page No. 53

Which of the following statement about alternation of generation in bryophytes is incorrect?


aIt involves alternation of morphologically different generations


bTheir gametophyte is independent while sporophyte depends upon gametophyte for nutrition


cBoth the gametophyte and sporophytes are haploid generations thus can produce haploids gametes to continue the diploid number on fertilization


dSpore formation occurs through meiosis



The dichotomously branching system has shape similar to________________?


aU


bR


cY


dFork


View Answer Y

In bryophytes fertilization takes place in___________?


aAntheridia


bArchegonia


cwater


dOvule


View Answer Archegonia

Megaphylls are characteristic for____________?


aFerns


bSeed plants


cBoth of these


dNone of these


View Answer Seed plants

Horsetails are included in class of____________?


aSphenopeida


bLycopsida


cPsilopsida


dPteropsida


View Answer Sphenopeida

Of the following which one is not the characteristic of the plants included in psilopsida_____________?


aGametophyte is colourless


bThey have mycorrhizal association


cRhizoids bear Rhizome


dAerial branches have veinless outgrowths


View Answer Rhizoids bear Rhizome

Hornwarts are included in sub-class of __________?


aAnthoceropsida


bBryopsida


cHepaticopsida


dPsilopsida


View Answer Anthoceropsida

Today the land habitat is dominated by__________________?


aFungi


bGymnosperms


cAngiosperms


dTracheophytes


View Answer Tracheophytes

Bryophtes are called amphiabians of plant world because:


aBryophytes like amphibian ancestors are one of the most primitive organisms in this world.


bBryophytes like amphibian live in damp shady places and close to water body.


cAmphibians have close relation with bryophytes in their habitat.


dAll of these



Equistem is an example of___________?


aPsilopsida


bLycopsida


cSphenopsida


dPrteropsida


View Answer Sphenopsida

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