Question

module test

1. the act of inhaling oxygen (o₂) and exhaling carbon dioxide (co₂) is referred to as which of the following?

internal respiration
vascular exchange
external respiration
tissue exchange

Explanation:

External respiration is the gas - exchange process between the body and the environment, which involves inhaling oxygen and exhaling carbon dioxide. Internal respiration refers to gas exchange between blood and tissues. Vascular exchange is related to the movement of substances in blood vessels. Tissue exchange is also about exchanges within tissues.

Answer:

C. External respiration