701. Diatoms float in water due to

A Stored fats
B Gas Vacuoles
C Flagella
D Air chambers
Answer :   Stored fats
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702. Slime-moulds includes in which class of protista kingdom

A Myxomycota
B Eumycota
C Gymnomycota
D Myxomycophyta
Answer :   Gymnomycota
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703. Which of the following maintains shape of nucleus in Amoeba

A Nuclear membrane
B Honey comb latice
C Nucleoplasm
D None of the above
Answer :   Honey comb latice
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704. Which one of the following is notdiatom

A Nostoc
B Navicula
C Cyclotella
D Pinnularia
Answer :   Nostoc
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705. Virus disease do not generally spread through

A Vegetative propagation
B Seeds
C Grafting
D Cutting
Answer :   Seeds
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706. Fertility of soil is Increased by

A Nitrogen - fixing bacteria
B Denitriying bacteria
C Plasmalemma
D Cellmembrane
Answer :   Nitrogen - fixing bacteria
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707. Mycelial bacteria are

A Eubacteria
B Actinomycetes
C Cynobcteria
D Fungi
Answer :   Actinomycetes
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708. Satellite RNAs are present in some

A Plant viruses
B Viroids
C Prions
D Bacteriophages
Answer :   Plant viruses
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709. In fungi pitcher shaped, embedded body which opens to exterior by ostiole is called

A Coremium
B Sporodochium
C Pycnidium
D Acervulus
Answer :   Pycnidium
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710. A bite of Tse-Tse fly may pass to humans

A Leishmania donovani
B Trypanosoma gambiense
C Entamoeba histolytica
D Plasmodium vivax
Answer :   Trypanosoma gambiense
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