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Animal Kingdom · Question 96

AIPMT 2007MCQMedium📈 Topic in 12% papers+4−1
1

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.

Answer

(1) They all possess dorsal heart.

Solution

Nereis is an annelid, while scorpion, cockroach and silverfish are arthropods.

∵ All non-chordates having a heart have it on the dorsal side ⇒ all four possess a dorsal heart (dorsal blood vessel in Nereis) ⇒ (1) is correct.

∵ Nereis is aquatic (marine) ⇒ (2) is wrong; Annelida and Arthropoda are different phyla ⇒ (3) is wrong; Nereis has unjointed parapodia, not jointed appendages ⇒ (4) is wrong.

Answer: (1)

AIPMT 2007

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2

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
3

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
4

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
5

Metameric segmentation is the characteristic of

  1. Mollusca and Chordata
  2. Platyhelminthes and Arthropoda
  3. Echinodermata and Annelida
  4. Annelida and Arthropoda
AIPMT 2006
6

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
7

Which one of the following has an open circulatory system?

  1. Octopus
  2. Pheretima
  3. Periplaneta
  4. Hirudinaria
AIPMT 2006
8

In contrast to annelids the platyhelminthes show

  1. absence of body cavity
  2. bilateral symmetry
  3. radial symmetry
  4. presence of pseudocoel.
AIPMT 2005
9

From the following statements select the wrong one

  1. Prawn has two pairs of antennae.
  2. Nematocysts are characteristic of the phylum Cnidaria.
  3. Millipedes have two pairs of appendages in each segment of the body.
  4. Animals belonging to phylum Porifera are marine and fresh water.
AIPMT 2005
10

Which one of the following characters is not typical of the class Mammalia?

  1. Thecodont dentition
  2. Alveolar lungs
  3. Ten pairs of cranial nerves
  4. Seven cervical vertebrae
AIPMT 2005
11

In Arthropoda, head and thorax are often fused to form cephalothorax, but in which one of the following classes, is the body divided into head, thorax and abdomen?

  1. Insecta
  2. Myriapoda
  3. Crustacea
  4. Arachnida and Crustacea
AIPMT 2004

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