Final answer:
Aerobic exercise, also known as cardiorespiratory exercise, uses oxygen and typically involves using large muscle groups during continuous activities.
Step-by-step explanation:
Aerobic exercise (also known as cardio) is a type of cardiorespiratory exercise that uses oxygen and typically involves using large muscle groups during continuous activities. It relies on the aerobic energy-generating process, which means it requires oxygen to meet energy demands during exercise.
Examples of aerobic exercise include activities like running, swimming, cycling, and brisk walking. These types of exercises increase cardiovascular endurance and use a relatively high percentage of slow-twitch muscle fibers that consume large amounts of oxygen.