Biology MCQs

Page No. 79

The size of smallest virus is______________?


a10 nm


b20 nm


c30 nm


d40 nm


View Answer 20 nm

The one which is present in all aerobic species is _________?


aCytohrome c


bCytochrome a


cCytochrome a3


dCytochrome b


View Answer Cytohrome c

The word virus is derived from Latin word venome meaning____________?


aSweet fluid


bSore Fluid


cPoisonous Fluid


dSalty Fluid


View Answer Poisonous Fluid

Competition between species will be greatest if they attempt to occupy the same___________?


aEcosystem


bCommunity


cHabitat


dNiche


View Answer Niche

Amoeba belongs to which kingdom______________?


aProkaryotae


bPlantae


cMonera


dProtista


View Answer Protista

Animals with greatest number of similarities are grouped together in a/an___________?


aPhylum


bFamily


cGenus


dOrder


View Answer Genus

Other name for Kingdom monera is_______________?


aProtoctista


bProkaryotae


cArchae


dNone of these


View Answer Prokaryotae

Which of the following relationship is NOT an example of symbiosis?


aRhizobium and leguminous plants


bMarchantia sporophyte and gametophyte


cAlgae and fungi in a lichen


dMycorrhizal fungi and tree roots



In most ecosystems the greatest amount of energy flows through the____________?


aSecondary consumers


bHerbivores


cCarnivores


dDecomposers


View Answer Herbivores

DNA or RNA of viruses is enclosed in _______________ coat?


aProtein


bCarbohydrate


cLipid


dDNA


View Answer Protein

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