Which Statement Is the Most Accurate Definition of External Respiration

question 29

Multiple Choice

Which statement is the most accurate definition of external respiration?

• A) Bulk flow (convection) of air or water to and from the gas-exchange membrane.
• B) The process by which O₂ is transported to the gas-exchange membrane from the environmental medium and by which CO₂ is transported away from the membrane into the environmental medium.
• C) The process by which CO₂ is transported to the gas-exchange membrane from the environmental medium and O₂ is transported away from the membrane into the environmental medium.
• D) Diffusion of O₂ and CO₂ across the gas exchange membrane.

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Definitions:

Diffusion of Responsibility

A phenomenon where individuals in a group are less likely to take action or feel accountable for their actions because the responsibility is perceived to be shared among all group members.

Just-World Hypothesis

The notion that many people need to believe that the world is fair and that justice is served, that bad people are punished and good people are rewarded.

Deindividuation

In groups or crowds, the loss of awareness of one’s own individuality.

Robbers Cave Experiment

A social psychology experiment that showed how group conflict can arise from competition over resources and how cooperative tasks can reduce intergroup hostility.