In which triploblastic animal, coelom is absent? from Biology An

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 Multiple Choice QuestionsMultiple Choice Questions

221.

Which artery is absent in frog

  • Right systemic arch

  • Phrenic artery

  • Carotid artery

  • Renal artery


222.

Blind sac body plan is shown by

  • roundworms

  • annelids

  • coelenterates

  • arthropods


223.

The typhlosole in earthworm is related with

  • excretion

  • absorption

  • respiration

  • reproduction


224.

Mesoglia is seen in between

  • ectoderm and endoderm

  • ectoderm and mesoderm

  • mesoderm and endoderm

  • just below mesoderm


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225.

Green gland is the excretory organ of

  • prawn

  • butterfly

  • snail

  • earthworm


226.

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

  • Fasciola hepatica

  • Plasmodium vivax

  • Taenia solium

  • Ascaris lumbricoides


227.

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

  • Porifera

  • Cnidaria

  • Ctenophora

  • Echinodermata


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228.

In which triploblastic animal, coelom is absent?

  • Platyhelminthes

  • Aschelminthes

  • Annelids

  • Arthropoda


A.

Platyhelminthes

The members of Phylum- Platyhelminthes are triploblastic and acoelomate, ie, without any body cavity. The spaces between various organs are filled with special mesodermal tissue, the mesenchyma.


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229.

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

  • Annelida

  • Arthropoda

  • Mollusca

  • Echinodermata


230.

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


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