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Animal Kingdom · Question 90

AIPMT 2008MCQMedium📈 Topic in 75% papers+4−1
1

Which one of the following groups of three animals each is correctly matched with their one characteristic morphological feature?

  1. array|l|l| Animals & Morphological features \ Scorpion, spider, cockroach & ventral solid central nervous system \ array
  2. array|l|l| Animals & Morphological features \ Cockroach, locust, Taenia & metameric segmentation \ array
  3. array|l|l| Animals & Morphological features \ Liver fluke, sea anemone, sea cucumber & bilateral symmetry \ array
  4. array|l|l| Animals & Morphological features \ Centipede, prawn, sea urchin & jointed appendages \ array

Answer

(1) array|l|l| Animals & Morphological features \ Scorpion, spider, cockroach & ventral solid central nervous system \ array

Solution

Scorpion, spider and cockroach are arthropods; arthropods have a ventral, solid (non-tubular), double nerve cord, i.e., a ventral solid central nervous system. Hence (1) is correct.

⇒ Taenia (tapeworm) is a platyhelminth; its body is not metamerically segmented (its proglottids are not true segments), so (2) is wrong.

⇒ Sea anemone (cnidarian) is radially symmetrical and the adult sea cucumber (echinoderm) is radially symmetrical, so (3) is wrong.

⇒ Sea urchin is an echinoderm without jointed appendages, so (4) is wrong.

Answer: (1)

AIPMT 2008

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2

Which one of the following phyla is correctly matched with its two general characteristics?

  1. Echinodermata - pentamerous radial symmetry and mostly internal fertilization
  2. Mollusca - normally oviparous and development through a trochophore or veliger larva
  3. Arthropoda - body divided into head, thorax and abdomen and respiration by tracheae
  4. Chordata - notochord at some stage and separate anal and urinary openings to the outside
AIPMT 2008
3

Which one of the following is not a characteristic of Phylum Annelida?

  1. Pseudocoelom
  2. Ventral nerve cord
  3. Closed circulatory system
  4. Segmentation
AIPMT 2008
4

Which of the following pairs are correctly matched? array|l|l|c|l| & Animals & & Morphological features \ (i) & Crocodile & – & 4-chambered heart \ (ii) & Sea urchin & – & Parapodia \ (iii) & Obelia & – & Metagenesis \ (iv) & Lemur & – & Thecodont \ array

  1. (ii), (iii) and (iv)
  2. only (i) and (iv)
  3. only (i) and (ii)
  4. (i), (iii) and (iv)
AIPMT 2007
5

Which one of the following is a matching pair of body feature and the animal possessing it?

  1. Ventral central nervous system – Leech
  2. Pharyngeal gill slits absent in embryo – Chamaeleon
  3. Ventral heart – Scorpion
  4. Post-anal tail – Octopus
AIPMT 2007
6

What is common between parrot, platypus and kangaroo?

  1. Toothless jaws
  2. Functional post-anal tail
  3. Oviparity
  4. Homoiothermy
AIPMT 2007
7

What is true about Nereis, scorpion, cockroach and silverfish?

  1. They all possess dorsal heart.
  2. None of them is aquatic.
  3. They all belong to the same phylum.
  4. They all have jointed paired appendages.
AIPMT 2007
8

Biradial symmetry and lack of cnidoblasts are the characteristic of

  1. Hydra and starfish
  2. starfish and sea anemone
  3. Ctenoplana and Beroe
  4. Aurelia and Paramecium
AIPMT 2006
9

Two common characters found in centipede, cockroach, and crab are

  1. book lungs and antennae
  2. compound eyes and anal cerci
  3. jointed legs and chitinous exoskeleton
  4. green gland and tracheae
AIPMT 2006
10

In which one of the following sets of animals do all the four give birth to young ones?

  1. Kangaroo, hedgehog, dolphin, Loris
  2. Lion, bat, whale, ostrich
  3. Platypus, penguin, bat, hippopotamus
  4. Shrew, bat, cat, kiwi
AIPMT 2006
11

Metameric segmentation is the characteristic of

  1. Mollusca and Chordata
  2. Platyhelminthes and Arthropoda
  3. Echinodermata and Annelida
  4. Annelida and Arthropoda
AIPMT 2006

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