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Animal Kingdom · Question 113

AIPMT 2002MCQEasy📈 Topic in 75% papers+4−1
1

In which of the following, notochord is present in embryonic stage?

  1. All chordates
  2. Some chordates
  3. Vertebrates
  4. Non-chordates

Answer

(1) All chordates

Solution

As per NCERT, animals of phylum Chordata are fundamentally characterised by the presence of a notochord, a dorsal hollow nerve cord and paired pharyngeal gill slits.

⇒ In vertebrates the notochord is present only during the embryonic stage and is replaced by a cartilaginous or bony vertebral column in the adult.

⇒ Non-chordates have no notochord.

∴ Notochord is present in the embryonic stage of all chordates.

Answer: (1)

AIPMT 2002

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2

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

  1. Annelida
  2. Echinodermata
  3. Insecta
  4. Mollusca
AIPMT 2001
3

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

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

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
5

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

  1. Sponge
  2. Hydra
  3. Liver fluke
  4. Ascaris
AIPMT 2000
6

Similarity in Ascaris lumbricoides and Anopheles stephensi is

  1. sexual dimorphism
  2. metamerism
  3. anaerobic respiration
  4. endoparasitism.
AIPMT 2000
7

Which of the following characters is absent in all chordates?

  1. Diaphragm
  2. Coelom
  3. Pharyngeal gill clefts
  4. Dorsal nerve cord
AIPMT 2000
8

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
9

Which gland secretes odorous secretion in mammals?

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

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All NEET Zoology chapters
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