Multiple Choice Questions

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Which one of these animals is not a homeotherm?

  • Macropus

  • Chelone

  • Psittacula

  • Camelus


B.

Chelone

Homeotherm are animals that maintain constant body temperature, irrespective of surrounding temperature.

Birds and mammals are homeotherms. Chelone (Turtle) belongs to class reptilia which is Poikilotherm or cold blood.


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An important characteristic that Hemichordates share with Chordates is

  • Absence of notochord

  • Ventral tubular nerve cord

  • Pharynx with gill slits

  • Pharynx with gill slits

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Notochord originates from

  • Mesoderm

  • Ectoderm

  • Endoderm

  • None of these


Which of the following features is used to identify a male cockroach from a female cockroach?

  • Presence of a boat-shaped sternum on the 9th abdominal segment

  • Presence of caudal styles

  • Presence of anal cerci

  • Forewings with darker tegmina


Which among these is the correct combination of aquatic mammals?

  • Seals, Dolphins, Sharks

  • Dolphins, Seals, Trygon

  • Whales, Dolphins, Seals

  • Whales, Dolphins, Seals

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Torsion of visceral mass is seen in animals belonging to the class

  • Cephalopoda

  • Scaphopoda

  • Amphineura

  • Gastropoda


Which of the following animals does not undergo metamorphosis?

  • Earthworm

  • Tunicate

  • Starfish

  • Moth


Match the following columns.

Column I Column II
A. Pinocytosis 1. Euglena Gracillis
B. Hotozoic 2. Paramecium
C. Parasitic 3. Amoeba Proteus
D. Mixotrophic 4. Monocystis

  • A B C D
    3 2 4 1
  • A B C D
    2 3 4 1
  • A B C D
    4 3 1 2
  • A B C D
    1 4 2 3

Organ of Jacobson helps in

  • Touch

  • Vision

  • Smell

  • Hearing


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Which of the given option is correct regarding the statements?

Statement I: Cephalochordata bears notochord all along the body throughout life.

Statements II: Urochordate bears vertebral column only in the tail region throughout the life.

  • I wrong, II correct

  • I correct, II wrong

  • Both I and II are wrong

  • Both are correct


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