Multiple Choice Questions

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In sea anemone, the symmetry is

  • radial

  • bilateral

  • spherical

  • absent


A.

radial

In radial symmetry, body is divided into similar halves by more than two planes passing through one main axis. Eg. Cnidarians or coelenterates such as Hydra, sea anemone, Aurelia, Obelia) are radially symmetrical animals with cell-tissue grade of body organization.


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Apis dorsata refers to

  • rock bee

  • little bee

  • Indian bee

  • European bee


Malpighian tubµles are

  • excretory organs of insects

  • excretory organs of frog

  • respiratory organs of insects

  • endocrine glands of insects


The characteristic larva of phylum Coelenterata is

  • planula

  • cysticercus

  • rhabditiform

  • wriggler


The group of anamniota includes:

  • reptiles and birds

  • birds and mammals

  • fishes and amphibians

  • reptiles, and mammals


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Ecdysone is secreted from:

  • insecta

  • trematoda

  • nematoda

  • polycheta


Flying fish is

  • Torpedo

  • Scoliodon

  • Anguilla

  • Exocoetus


Salamandra atra is

  • ovoviviparous

  • oviparous

  • sexuaily sterile

  • parthenogenetic


Which of the following cell type is capable of giving rise to other cell types in sponges ?

  • Thesocytes

  • Pinacocytes

  • Cnidocytes

  • Archaeocytes


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Which of the following is not a character of Chordata?

  • Dorsal tubular nerve cord

  • Pharyngeal gill slits

  • Presence of notochord

  • Presence of spinal cord


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