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Animal Kingdom · Question 93

AIPMT 2007MCQMedium📈 Topic in 62% papers+4−1
1

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)

Answer

(4) (i), (iii) and (iv)

Solution

(i) As per NCERT, the heart of reptiles is usually three-chambered, but four-chambered in crocodiles ⇒ correct.

(ii) Sea urchin is an echinoderm and moves by tube feet (water vascular system); parapodia are found in annelids such as Nereis ⇒ wrong.

(iii) Obelia shows alternation of generation between the polyp and the medusa forms (metagenesis) ⇒ correct.

(iv) Lemur is a mammal (primate); mammals have thecodont teeth (set in sockets of the jaw bone) ⇒ correct.

∴ (i), (iii) and (iv) are correctly matched.

Answer: (4)

AIPMT 2007

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2

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
3

What is common between parrot, platypus and kangaroo?

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

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
5

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
6

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
7

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
8

Metameric segmentation is the characteristic of

  1. Mollusca and Chordata
  2. Platyhelminthes and Arthropoda
  3. Echinodermata and Annelida
  4. Annelida and Arthropoda
AIPMT 2006
9

Which one of the following is a matching set of a phylum and its three examples?

  1. Porifera - Spongilla, Euplectella, Pennatula
  2. Cnidaria - Bonellia, Physalia, Aurelia
  3. Platyhelminthes - Planaria, Schistosoma, Enterobius
  4. Mollusca - Loligo, Teredo, Octopus
AIPMT 2006
10

Which one of the following has an open circulatory system?

  1. Octopus
  2. Pheretima
  3. Periplaneta
  4. Hirudinaria
AIPMT 2006
11

In contrast to annelids the platyhelminthes show

  1. absence of body cavity
  2. bilateral symmetry
  3. radial symmetry
  4. presence of pseudocoel.
AIPMT 2005

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