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The diagrams below represent some respiratory structures in three organisms. The labeled structures in these organisms all have a similar function. What is the main function of the labeled structure(s) in each organism?

A)Circulation of blood
B)Digestion of food
C)Production of food
D)Exchange of gases

The Diagrams Below Represent Some Respiratory Structures In Three Organisms The Labeled Structures In These Organisms All Have A Similar Function What Is The Ma class=

Sagot :

saramoustafa1910

Answer:

D

Explanation:

Lungs, Moist skin , Gills is in the exchange of gases system

The correct answer is D.

The structure of human lungs is first demonstrated in an organism.

  • Lungs are the respiratory organs. They are made up of alveoli.

Main Function :

  • The main function of lungs is the gaseous exchange.
  • This gaseous exchange occurs in the alveoli.
  • Oxygen from atmosphere comes into the lungs through nostrils, nasal cavities, pharynx, larynx, trachea, bronchi and finally reaches the lungs.
  • Then gaseous exchange occurs between blood and alveoli.
  • Oxygen enters into the blood and carbon dioxide leaves the blood.

The structure of Earthworms Moist skin is second demonstrated in an organism.

  • The earthworm has no special respiratory organs like lungs or gills.
  • Respiration takes place through the body wall.
  • The outer surface of the skin is richly supplied with blood capillaries which aid in the diffusion of gases.
  • Oxygen diffuses through the skin into the blood while carbon dioxide from the blood diffuses out.
  • The skin is kept moist by mucous and coelomic fluid and facilitates exchange of gases.

The structure of Fish Gills is third demonstrated in an organism.

  • The gill filaments in fish have functions like lungs in people: it's the organ responsible for absorbing oxygen and expelling carbon dioxide.
  • The gills also regulate levels of mineral ions and the pH of the blood, as well as being the primary site of nitrogenous waste excretion, in the form of ammonia.

Learn more about Respiratory System here:

brainly.com/question/2619922

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