Which of the following organisms does not require both external ventilation of its respiratory surfaces with the medium containing O₂ and internal ventilation of its respiratory surfaces with blood? A) Crayfish B) Rabbit C) Insect D) Squid E) Bird

Question

Quizplus · Accepted Answer

Insects have a system of internal tubes called tracheae that transport gases directly to and from their respiratory surfaces, eliminating the need for both external ventilation and internal ventilation with blood. The other organisms listed require both forms of ventilation for respiration.

Which of the Following Organisms Does Not Require Both External