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Animal Kingdom · Question 82

AIPMT 2010 (Prelims)MCQMedium📈 Topic in 0% papers+4−1
1

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.

Answer

(3) Spongilla has special collared cells called choanocytes, not found in the remaining three.

Solution

As per NCERT, sponges (Porifera) have a water canal system lined by collar cells or choanocytes; these cells are not found in any other animal phylum.

∵ Dolphin is also homoiothermic ⇒ (1) is wrong.

∵ Spongilla is a fresh water sponge ⇒ (2) is wrong.

∵ Sponges are generally asymmetrical ⇒ (4) is wrong.

Answer: (3)

AIPMT 2010 (Prelims)

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2

Which one of the following kinds of animals are triploblastic?

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

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)
4

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
5

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
6

Peripatus is a connecting link between:

  1. Ctenophora and Platyhelminthes
  2. Mollusca and Echinodermata
  3. Coelenterata and Porifera
  4. Annelida and Arthropoda
AIPMT 2009
7

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
8

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
9

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
AIPMT 2008
10

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
11

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

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