Multiple Choice Questions

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Name one disease of mulberry silkworm caused by Protozoa

  • pebrine

  • graseri

  • flacheri

  • muscardine


A.

pebrine

The protozoan Nosema bombycis infects the eggs of the silkworm and transmits the disease from one generation to other. This hereditary disease is known as pebrine.


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In which of the following phyla, compound eyes are present?

  • Annelida

  • Arthropoda

  • Mollusca

  • Echinodermata


Small particles projecting from the inner membranes and cristae of mitochondria are known as

  • myeloid bodies

  • microsomes

  • informosomes

  • oxysomes


Which one of the following is the infective stage of Ascaris lumbricoides?

  • Unsegmented egg

  • Egg with first stage larva

  • Egg with second stage larva

  • Free third stage larva


The parasite, which completes its life cycle in a single host is

  • Fasciola hepatica

  • Plasmodium vivax

  • Taenia solium

  • Ascaris lumbricoides


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Green gland is the excretory organ of

  • prawn

  • butterfly

  • snail

  • earthworm


Seed habit originated in

  • Bryophyta

  • Pteridophyta

  • Gymnosperms

  • Angiosperms


Pith is absent in

  • protostele

  • eustele

  • amphiphloic stele

  • ectophloic stele


In which triploblastic animal, coelom is absent?

  • Platyhelminthes

  • Aschelminthes

  • Annelids

  • Arthropoda


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Water vascular system is present in which of the following phylum?

  • Porifera

  • Cnidaria

  • Ctenophora

  • Echinodermata