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Animal Kingdom · Question 46

NEET 2016 (Phase 1)MCQMedium📈 Topic in 62% papers+4−1
1

Which of the following characteristic features always holds true for the corresponding group of animals?

  1. Possess a mouth with an upper and a lower jaw – Chordata
  2. 3-chambered heart with one incompletely divided ventricle – Reptilia
  3. Cartilaginous endoskeleton – Chondrichthyes
  4. Viviparous – Mammalia

Answer

(3) Cartilaginous endoskeleton – Chondrichthyes

Solution

As per NCERT, all members of class Chondrichthyes have a cartilaginous endoskeleton — always true.

∵ Cyclostomes and lower chordates (urochordates, cephalochordates) are jawless chordates, option (1) is not always true.

∵ Crocodiles have a 4-chambered heart, option (2) is not always true.

∵ Egg-laying mammals (e.g. Ornithorhynchus) exist, option (4) is not always true.

Answer: (3)

NEET 2016 (Phase 1)

Keep practising — Animal Kingdom

2

Which one of the following characteristics is not shared by birds and mammals?

  1. Viviparity
  2. Warm blooded nature
  3. Ossified endoskeleton
  4. Breathing using lungs
NEET 2016 (Phase 1)
3

Which of the following features is not present in the Phylum Arthropoda?

  1. Parapodia
  2. Jointed appendages
  3. Chitinous exoskeleton
  4. Metameric segmentation
NEET 2016 (Phase 1)
4

Which of the following features is not present in Periplaneta americana?

  1. Indeterminate and radial cleavage during embryonic development
  2. Schizocoelom as body cavity
  3. Metamerically segmented body
  4. Exoskeleton composed of N-acetylglucosamine
NEET 2016 (Phase 1)
5

Choose the correct statement

  1. All mammals are viviparous.
  2. All cyclostomes do not possess jaws and paired fins.
  3. All reptiles have a three-chambered heart.
  4. All pisces have gills covered by an operculum.
NEET 2016 (Phase 2)
6

Body having meshwork of cells, internal cavities lined with food filtering flagellated cells and indirect development are the characteristics of Phylum

  1. Mollusca
  2. Protozoa
  3. Coelenterata
  4. Porifera.
AIPMT 2015
7

Metagenesis refers to

  1. occurrence of a drastic change in form during post-embryonic development
  2. presence of a segmented body and parthenogenetic mode of reproduction
  3. presence of different morphic forms
  4. alternation of generation between asexual and sexual phases of an organism.
AIPMT 2015
8

A jawless fish, which lays eggs in fresh water and whose ammocoetes larvae after metamorphosis return to the ocean is

  1. Neomyxine
  2. Petromyzon
  3. Eptatretus
  4. Myxine
AIPMT 2015
9

Which of the following endoparasites of humans does show viviparity?

  1. Trichinella spiralis
  2. Ascaris lumbricoides
  3. Ancylostoma duodenale
  4. Enterobius vermicularis
AIPMT 2015 (Cancelled)
10

Which of the following represents the correct combination without any exception? (Characteristics – Class)

  1. Sucking and circular mouth; jaws absent, integument without scales; paired appendages. – Cyclostomata
  2. Body covered with feathers; skin moist and glandular, forelimbs form wings; lungs with air sacs. – Aves
  3. Mammary gland; hair on body; pinnae; two pairs of limbs. – Mammalia
  4. Mouth ventral; gills without operculum; skin with placoid scales; persistent notochord. – Chondrichthyes
AIPMT 2015 (Cancelled)
11

Which of the following animals is not viviparous?

  1. Platypus
  2. Whale
  3. Flying fox (Bat)
  4. Elephant
AIPMT 2015 (Cancelled)

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All NEET Zoology chapters
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