Multiple Choice Questions

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Change in the number of body parts is called

  • Continuous variation

  • Discontinuous variation

  • Meristic variation

  • Substantive variation


C.

Meristic variation

Meristic variations involve any change in the number of body parts. In other words, it may be defined as the numerical variation in the taxonomic characters, e.g., number of spots, vertebrae, etc.


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Deficiency of vitamin -B12 causes

  • Cheilosis

  • Thalassemia

  • Beri-Beri

  • Pernicious Anaemia


Which is regarded as the urinary bladder of the embryo?

  • Amnion

  • Allantois

  • Chorion

  • Yolk sac


 Blood is a kind of

  • Areolar tissue

  • Connective tissue

  • Fluid connective tissue

  • Reticular connective tissue


The most primitive vertebrates are

  • Ostracoderms

  • Cephalochordates

  • Placoderms

  • Cyclostomes


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Urea synthesis occurs in

  • kidney

  • Liver

  • Brain

  • Muscles


The most active phagocytic white blood cells are

  • Neutrophils and eosinophils

  • Lymphocytes and macrophages

  • Eosinophils and lymphocyte

  • Neutrophils and monocytes


Branch of zoology dealing with the study of fishes is called

  • Arthrology

  • Ichthyology

  • Saurology

  • Herpetology


Which is common to kidney and skeleton in mammals?

  • Cortex

  • Medulla

  • Pelvis

  • Radius


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Theory of continuity of germplasm was propounded by

  • Mendel

  • Lamarck

  • Weismann

  • Haeckel