91. Connecting link between protozoa and one-called plants is

A Paramecium
B Euglena
C Amoeba
D Trypanosoma
Answer :   Euglena
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92. Life cannot originate from inorganic materials at present because of

A a very high amount of oxygen in the atmosphere
B very low atmospheric temperature
C absence of raw materials
D high degree of environmental pollution
Answer :   a very high amount of oxygen in the atmosphere
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93. Which one of the following options gives one correct example each of convergent evolution and divergent evolution?
Convergent evolution - Divergent evolution

A Eyes of octopus and mammals - Bones of forelimbs of vertebrates
B Thorns of Bougainvillia and tendrils of Cucurbita - Wings of butterflies and birds
C Bones of forelimbs of vertebrates - Wings of butterfly and birds
D Thorns of Bougainvillia and tendrils of Cucurbita - Eyes of Octopus and mammals
Answer :   Eyes of octopus and mammals - Bones of forelimbs of vertebrates
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94. In the evolution of man, several changes occured in the ancestral characters. Which one of the following changes is irrelevant in this context?

A Loss of tail from body
B Increase in the ability to communicate with others and develop community behaviour
C Change of diet from fruits, hard nuts and roots to softer food
D Perfection in the structure and working of hand for tool-making
Answer :   Change of diet from fruits, hard nuts and roots to softer food
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95. Use of atomic bombs may lead to abnormalities even in coming generations because of

A Body changes
B Air pollution
C Changed atoms in atmosphere
D Genetic mutation
Answer :   Genetic mutation
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96. The proper burial of dead for the first time started with which prehistoric man

A Peking man
B Neanderthal man
C Java man
D Cromagnon man
Answer :   Neanderthal man
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97. There was no life in

A Mesozoic perid
B Cambrian period
C Palaeozoic period
D Azoic period
Answer :   Azoic period
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98. Cause of mutation

A Changes in DNA
B Changes in chromosomes
C Changes in gene
D All of the above
Answer :   All of the above
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99. Fossilization can occur where

A Animals are buried and preserved by natural process
B Animals are destroyed by scavengers
C Animals are eaten by predatos.
D Animals are destroyed by environmental conditions
Answer :   Animals are buried and preserved by natural process
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100. An era "age of birds and mammals " is

A Mewsozoic
B Palaecozoic
C Coenozoic
D Cretaceous
Answer :   Coenozoic
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Practice More MCQ Question on Biology Section

BotanyThe Living WorldBiological ClassificationPlant KingdomMorphology of Flowering PlantsAnatomy of Flowering PlantsCell: The Unit of LifeCell Cycle and Cell DivisonTransport in PlantsMineral NutritionPhotosynthesis in Higher PlantsRespiration in PlantsPlant Growth and DevelopmentReproduction in OrganismsSexual Reproduction in Flowering PlantsPrinciples of Inheritance and VariationMolecular Basis of InheritanceStrategies for Enhancement in Food ProductionMicrobes in Human WelfareOrganisms and PopulationsEcosystemBiodiversity and ConservationEnvironmental IssuesBotany Miscellaneous
ZoologyAnimal KingdomStructural Organisation in AnimalsBiomoleculesDigestion and AbsorptionBreathing and Exchange of GasesBody Fluids and CirculationExcretory Products and Their EliminationLocomotion and MovementNeural Control and CoordinationChemical Coordination and IntegrationHuman ReproductionReproductive HealthEvolutionHuman Health and DiseasesBiotechnology: Principles and ProcessesBiotechnology and its ApplicationsZoology Miscellaneous