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Animal Kingdom · Question 79

AIPMT 2011 (Prelims)MCQMedium📈 Topic in 62% papers+4−1
1

In which one of the following the genus name, its two characters and its class/phylum are correctly matched?

  1. array|l|l|l| Genus name & Two characters & Class/Phylum \ Ascaris & (i) Body segmented & Annelida \ & (ii) Males and females distinct & \ array
  2. array|l|l|l| Genus name & Two characters & Class/Phylum \ Salamandra & (i) A tympanum represents ear & Amphibia \ & (ii) Fertilization is external & \ array
  3. array|l|l|l| Genus name & Two characters & Class/Phylum \ Pteropus & (i) Skin possesses hair & Mammalia \ & (ii) Oviparous & \ array
  4. array|l|l|l| Genus name & Two characters & Class/Phylum \ Aurelia & (i) Cnidoblasts & Coelenterata \ & (ii) Organ level of organization & \ array

Answer

(2) array|l|l|l| Genus name & Two characters & Class/Phylum \ Salamandra & (i) A tympanum represents ear & Amphibia \ & (ii) Fertilization is external & \ array

Solution

∵ Ascaris is an aschelminth (roundworm): body not segmented, phylum Aschelminthes (not Annelida) ⇒ (1) is wrong.

As per NCERT, in amphibians ( Salamandra) a tympanum represents the ear, sexes are separate and fertilisation is external ⇒ (2) is correct.

∵ Pteropus (flying fox) is a mammal with hair, but it is viviparous, not oviparous ⇒ (3) is wrong.

∵ Coelenterates such as Aurelia have cnidoblasts but show tissue level of organisation ⇒ (4) is wrong.

Answer: (2)

AIPMT 2011 (Prelims)

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2

Crocodile and penguin are similar to whale and dogfish in which one of the following features?

  1. Possess a solid single stranded central nervous system
  2. Lay eggs and guard them till they hatch
  3. Possess bony skeleton
  4. Have gill slits at some stage
AIPMT 2010 (Mains)
3

One example of animals having a single opening to the outside that serves both as mouth as well as anus is

  1. Octopus
  2. Asterias
  3. Ascidia
  4. Fasciola
AIPMT 2010 (Prelims)
4

Which one of the following statements about all the four of Spongilla, leech, dolphin and penguin is correct?

  1. Penguin is homoiothermic while the remaining three are poikilothermic.
  2. Leech is a fresh water form while all others are marine.
  3. Spongilla has special collared cells called choanocytes, not found in the remaining three.
  4. All are bilaterally symmetrical.
AIPMT 2010 (Prelims)
5

Which one of the following kinds of animals are triploblastic?

  1. Flatworms
  2. Sponges
  3. Ctenophores
  4. Corals
AIPMT 2010 (Prelims)
6

Which one of the following statements about certain given animals is correct?

  1. Roundworms (Aschelminthes) are pseudocoelomates
  2. Molluscs are acoelomates
  3. Insects are pseudocoelomates
  4. Flatworms (Platyhelminthes) are coelomates
AIPMT 2010 (Prelims)
7

Which one of the following groups of animals is bilaterally symmetrical and triploblastic?

  1. Aschelminthes (round worms)
  2. Ctenophores
  3. Sponges
  4. Coelenterates (cnidarians)
AIPMT 2009
8

Which one of the following pairs of animals comprises 'jawless fishes'?

  1. Mackerels and rohu
  2. Lampreys and hagfishes
  3. Guppies and hagfishes
  4. Lampreys and eels
AIPMT 2009
9

Peripatus is a connecting link between:

  1. Ctenophora and Platyhelminthes
  2. Mollusca and Echinodermata
  3. Coelenterata and Porifera
  4. Annelida and Arthropoda
AIPMT 2009
10

Which one of the following in birds indicates their reptilian ancestry?

  1. Two special chambers crop and gizzard in their digestive tract
  2. Eggs with a calcareous shell
  3. Scales on their hind limbs
  4. Four-chambered heart
AIPMT 2008
11

Ascaris is characterized by

  1. presence of true coelom but absence of metamerism
  2. presence of true coelom and metamerism (metamerisation)
  3. absence of true coelom but presence of metamerism
  4. presence of neither true coelom nor metamerism
AIPMT 2008

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