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Animal Kingdom · Question 99

AIPMT 2006MCQEasy📈 Topic in 62% papers+4−1
1

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

Answer

(1) Kangaroo, hedgehog, dolphin, Loris

Solution

As per NCERT, mammals are viviparous with few exceptions (e.g. Ornithorhynchus, the platypus, is oviparous), while birds are oviparous.

∵ Kangaroo, hedgehog, dolphin and loris are all viviparous mammals ⇒ all four give birth to young ones.

∵ Ostrich, penguin and kiwi are birds (lay eggs) and platypus is an egg-laying mammal ⇒ options (2), (3) and (4) are wrong.

Answer: (1)

AIPMT 2006

Keep practising — Animal Kingdom

2

Metameric segmentation is the characteristic of

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

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
4

Which one of the following has an open circulatory system?

  1. Octopus
  2. Pheretima
  3. Periplaneta
  4. Hirudinaria
AIPMT 2006
5

In contrast to annelids the platyhelminthes show

  1. absence of body cavity
  2. bilateral symmetry
  3. radial symmetry
  4. presence of pseudocoel.
AIPMT 2005
6

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
7

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
8

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
9

The animals with bilateral symmetry in young stage, and radial pentamerous symmetry in the adult stage, belong to the Phylum

  1. Annelida
  2. Mollusca
  3. Cnidaria
  4. Echinodermata
AIPMT 2004
10

One of the following is a very unique feature of the mammalian body

  1. homeothermy
  2. presence of diaphragm
  3. four chambered heart
  4. rib cage
AIPMT 2004
11

Sycon belongs to a group of animals, which are best described as

  1. unicellular or acellular
  2. multicellular without any tissue organization
  3. multicellular with a gastrovascular system
  4. multicellular having tissue organization, but no body cavity.
AIPMT 2003

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