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Animal Kingdom · Question 114

AIPMT 2001MCQEasy📈 Topic in 12% papers+4−1
1

In which of the following animals, haemocyanin pigment is found?

  1. Annelida
  2. Echinodermata
  3. Insecta
  4. Mollusca

Answer

(4) Mollusca

Solution

Haemocyanin is a copper-containing respiratory pigment, blue when oxygenated, dissolved in the blood plasma.

It occurs in molluscs (e.g. Pila, Octopus) and in some arthropods such as prawns and crabs.

Annelids such as earthworm have haemoglobin; insects transport gases through tracheae and their blood is generally pigment-free; echinoderms have a water vascular system without such a pigment.

∴ Haemocyanin is found in Mollusca.

Answer: (4)

AIPMT 2001

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2

In which of the following animals post-anal tail is found?

  1. Earthworm
  2. Lower invertebrates
  3. Scorpion
  4. Snake
AIPMT 2001
3

In Hydra, waste material of food digestion and nitrogenous waste material are removed respectively from

  1. mouth and mouth
  2. body wall and body wall
  3. mouth and body wall
  4. mouth and tentacles
AIPMT 2001
4

Which of the following animals have scattered cells with cell-tissue grade organisation?

  1. Sponge
  2. Hydra
  3. Liver fluke
  4. Ascaris
AIPMT 2000
5

Similarity in Ascaris lumbricoides and Anopheles stephensi is

  1. sexual dimorphism
  2. metamerism
  3. anaerobic respiration
  4. endoparasitism.
AIPMT 2000
6

Which of the following characters is absent in all chordates?

  1. Diaphragm
  2. Coelom
  3. Pharyngeal gill clefts
  4. Dorsal nerve cord
AIPMT 2000
7

What is true for mammalia?

  1. Platypus is oviparous.
  2. Bats have feathers.
  3. Elephant is ovoviviparous.
  4. Diaphragm is absent in them.
AIPMT 2000
8

Which gland secretes odorous secretion in mammals?

  1. Bartholin's
  2. Prostate
  3. Anal gland
  4. Liver
AIPMT 2000

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