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  • Which class of animals include all ectoparasites on some fish ? Option: 1 Amphibia<b

Which class of animals include all ectoparasites on some fish ? 

Option: 1

Amphibia


Option: 2

Osteichthyes


Option: 3

Cyclostomata


Option: 4

Reptilia


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 are ectoparasitic on some fishes.

Posted by

Ajit Kumar Dubey

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