Question

Along with increasing your heart rate, which other function best describes what aerobic activities do?
It makes your lung work harder
It makes muscles grow larger
It makes your limbs more flexible

Answer 1

Along with increasing your heart rate, the function that best describes what aerobic activities do is **"It makes your lungs work harder."** Aerobic activities improve cardiovascular endurance and respiratory function by requiring the body to take in more oxygen during exercise.