Many of the major health organizations of the US recommend a minimum of ______ minutes of physical activities on most days of the week to achieve significant health benefits and protection from chronic diseases such as coronary heart disease.

Many of the major health organizations of the US recommend a minimum of ______ minutes of physical activities on most days of the week to achieve significant health benefits and protection from chronic diseases such as coronary heart disease. 

A) 30
B) 60
C) 10
D) 90



Answer: A

The cells of the blood that are often referred to as "white blood cells" are

The cells of the blood that are often referred to as "white blood cells" are

A) Platelets
B) Erythrocytes
C) Plasma Cells
D) Leukocytes





Answer: D

The reason that men have higher hematocrit and hemoglobin levels than women is

The reason that men have higher hematocrit and hemoglobin levels than women is 

A) Men produce more testosterone than women
B) Men have greater muscle mass than women.
C) Unlike men, women experience menstrual blood loss
D) Men generally train harder than women



Answer: A

Which of the following statements regarding blood pressure and resistance exercises is correct?

Which of the following statements regarding blood pressure and resistance exercises is correct?

A) People with even mild cardiovascular disease should never perform resistance exercises.
B) Blood pressure elevations are highest during isometric muscular actions
C) Blood pressure elevations during resistance exercises are independent of the muscle mass involved.
D) Typically, blood pressure elevations seen during maximal resistance exercise are less than those observed during maximal aerobic exercises.

Answer: B