When your body is exercising, most of your blood (up to 90%) is distributed

Measuring average heart rate throughout a workout can help determine if an exercise session provided enough intensity to make cardio-respiratory gains.

Which nutrient(s) provides the body with calories?

It is best to train in the ‘target heart rate zone’ to improve/maintain cardio-respiratory endurance fitness.

Modest health/wellness benefits can be gained by increasing the intensity of everyday activities, such as increasing the speed of a walk between classes, or parking farther away from the entrance at the grocery store.

If the weather in Palatine changed to very cold (snow on the ground 10 months of the year) over the next few years, what other change might occur?

Match each sign with its respective assessment findings. 

If it was beneficial for some human populations to evolve to have lighter skin, why does darker skin still exist?

Why did human skin evolve to be lighter in some populations? (Choose all that apply)

Which of the following species demonstrates sexual selection in which males must compete to be selected by females to mate?