Get Answers to all your Questions

header-bg qa

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

Option: 1

Mackerels and Rohu


Option: 2

Lampreys and hagfishes


Option: 3

Guppies and hagfishes


Option: 4

. Lampreys and eels


Answers (1)

best_answer

 

 

Class Cyclostomata - Characteristics Features -

  • This class includes the most primitive vertebrates, the lampreys and hagfishes.
  • Hagfishes are scavengers and lampreys are ectoparasite.
  • They have a sharp, circular jawless mouth with horny teeth.
  • They have a slender eel-like body.
  • They do not have paired fins.
  • The cranium and vertebral column are made up of cartilage.
  • They have closed circulatory system with two-chambered heart.
     

Lampreys and hagfishes are cyclostomes.

Posted by

sudhir.kumar

View full answer

NEET 2024 Most scoring concepts

    Just Study 32% of the NEET syllabus and Score up to 100% marks