Biology MCQs

Page No. 52

The arrangement of unequal dichotomous branches in one plane during evolution of leaves is called_____________?


aOvertopping


bFusion


cWebbing


dPlanation


View Answer Planation

Mosses are included in sub-division of ___________?


aAnthoceropsida


bHepaticopsida


cBryopsida


dLycopsida


View Answer Bryopsida

Megaphylls i.e. leaves with divided veins with an expanded lamina is a dharacteristic of ___________________?


aLycopods


bFerns


cSeed plants


dBoth b and c


View Answer Both b and c

Which of the following plant group first formed true leaves________________?


aPsilopsida


bLycopsida


cSphenopsida


dPteropsida


View Answer Lycopsida

Sporophyte is____________?


aMonoploid


bHaploid


cDiploid


dPolyploidy


View Answer Diploid

Ground pries are also known as___________?


aLycopods


bSpike mosses


cBoth of these


dNone of these


View Answer Both of these

The zygote formed in liverworts is___________?


aUnicellular


bMulicellular


cMultinucleate


dNone of these


View Answer Unicellular

Antherozoids the male gamete in bryophytes are attracted towards Archegonium i.e. female sex organ by____________?


aPhototactic phenomenon


bChemotactic phenomenon


cGeotropic phenomenon


dChemotropic movement



Production of two types of spores is known as________________?


aHeterospory


bHomospory


cHeterogamy


dGamospory


View Answer Heterospory

The space between the overtopped dichotomous branches was occupies by a sheet of _________ cells during evolution of megaphyllas?


aSclerenchyma


bChlorenchyma


cParenchyma


dCollenchyma


View Answer Chlorenchyma

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