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Animal Kingdom · Question 34

NEET (UG) 2020MCQMedium📈 Topic in 75% papers+4−1
1

Which of the following statements are true for the phylum-Chordata?

  1. (iii) and (i)
  2. (i) and (ii)
  3. (ii) and (iii)
  4. (iv) and (iii)

Answer

(3) (ii) and (iii)

Solution

(i) False: as per NCERT, in Urochordata the notochord is present only in the larval tail; it extends from head to tail and persists throughout life in Cephalochordata.

(ii) True: in Vertebrata the notochord is present during the embryonic period only (replaced by the vertebral column in the adult).

(iii) True: chordates have a dorsal, hollow and single central nervous system.

(iv) False: Chordata is divided into three subphyla: Urochordata (Tunicata), Cephalochordata and Vertebrata; Hemichordata is a separate phylum.

Statements (ii) and (iii) are true.

Answer: (3)

NEET (UG) 2020

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2

Match the following columns and select the correct option :

  1. (a)-(iv), (b)-(i), (c)-(ii), (d)-(iii)
  2. (a)-(iii), (b)-(ii), (c)-(i), (d)-(iv)
  3. (a)-(ii), (b)-(i), (c)-(iii), (d)-(iv)
  4. (a)-(i), (b)-(iii), (c)-(ii), (d)-(iv)
NEET (UG) 2020
3

Match the following columns and select the correct option :

  1. (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)
  2. (a)-(iv), (b)-(ii), (c)-(iii), (d)-(i)
  3. (a)-(i), (b)-(iv), (c)-(iii), (d)-(ii)
  4. (a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
NEET (UG) 2020
4

Consider following features: Select the correct option of animal groups which possess all the above characteristics

  1. Arthropoda, Mollusca and Chordata
  2. Annelida, Mollusca and Chordata
  3. Annelida, Arthropoda and Chordata
  4. Annelida, Arthropoda and Mollusca
NEET (UG) 2019
5

Match the following organisms with their respective characteristics: Select the correct option from the following:

  1. (a)-(ii), (b)-(iv), (c)-(iii), (d)-(i)
  2. (a)-(iii), (b)-(ii), (c)-(iv), (d)-(i)
  3. (a)-(iii), (b)-(ii), (c)-(i), (d)-(iv)
  4. (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)
NEET (UG) 2019
6

Which of the following animals does not undergo metamorphosis?

  1. Tunicate
  2. Starfish
  3. Earthworm
  4. Moth
NEET 2018
7

Identify the vertebrate group of animals characterised by crop and gizzard in its digestive system.

  1. Amphibia
  2. Osteichthyes
  3. Reptilia
  4. Aves
NEET 2018
8

Which one of these animals is not a homeotherm?

  1. Chelone
  2. Macropus
  3. Psittacula
  4. Camelus
NEET 2018
9

Important characteristic that hemichordates share with chordates is

  1. ventral tubular nerve cord
  2. pharynx with gill slits
  3. pharynx without gill slits
  4. absence of notochord
NEET 2017
10

Which among these is the correct combination of aquatic mammals?

  1. Dolphins, Seals, Trygon
  2. Whales, Dolphins, Seals
  3. Trygon, Whales, Seals
  4. Seals, Dolphins, Sharks
NEET 2017
11

In case of poriferans, the spongocoel is lined with flagellated cells called

  1. oscula
  2. choanocytes
  3. mesenchymal cells
  4. ostia
NEET 2017

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