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  • Which of the following groups of animals do not respire through moist skin or body surface?  Option: 1 A

Which of the following groups of animals do not respire through moist skin or body surface?

 

Option: 1

Amphibians

 


Option: 2

Earthworms

 


Option: 3

Mammals

 


Option: 4

Flatworms 

 


Answers (1)

best_answer

Respiratory Organs in Different Organisms -

 
  • Mechanisms of breathing vary among different groups of animals depending mainly on their habitats and levels of the organisation. 
  • Lower invertebrates like sponges, coelenterates, flatworms, etc., exchange O2 with CO2 by simple diffusion over their entire body surface.
  • Earthworms use their moist cuticle for exchange of gases.
  • Insects have a network of tubes (tracheal tubes) to transport atmospheric air within the body.
  • Special vascularised structures called gills (branchial respiration) are used by most of the aquatic arthropods and molluscs. 
  • Vascularised bags called lungs (pulmonary respiration) are used by the terrestrial forms for the exchange of gases.
  • Among vertebrates, fishes use gills whereas amphibians, reptiles, birds and mammals respire through lungs.
  • Amphibians like frogs can respire through their moist skin (cutaneous respiration) also. 
  • Lower invertebrates like sponges, coelenterates, flatworms, etc., exchange O_{2} with CO_{2} by simple diffusion over their entire body surface. Earthworms use their moist cuticle for exchange of gases. Amphibians like frogs can respire through their moist skin (cutaneous respiration) also. Hence the correcty option is mammals
Posted by

Devendra Khairwa

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