The Organ System That Exchanges Oxygen and Carbon Dioxide Between

question 50

Multiple Choice

The organ system that exchanges oxygen and carbon dioxide between the air and blood is the:

• A)nervous system
• B)circulatory system
• C)skeletal system
• D)respiratory system

---

Definitions:

Elastic

Describes a situation in which the demand or supply for a good or service changes significantly when its price changes.

Inelastic

A situation in which the demand or supply for a product does not change significantly in response to price changes.

Fixed Productive Capacity

The maximum output that an economy can produce without increasing inflation, assuming resources are fully utilized.

Chocolate

A sweet, typically brown food preparation of roasted and ground cacao seeds.