Using the karvonen method and an exercise intensity of 55% will determine the heart rate corresponding to what percentage of vo2 max?
55%
60%
80%
85% (your answer)
none of the above

Which of the following is an example of a tissue on the digestive system a. the stomach b. smooth muscle that lines the stomach c. nerve cells in the stomach d. enzyme molecules in the stomach

What causes temperature extremes in the desert

The carbon cycle is best defined as a process in which a. carbon changes from inorganic forms to organic forms and back b. carbon is changed into other elements such as oxygen or nitrogen c. carbon is continually created from the sun’s energy by plants d. carbon is consumed and regenerated from other elements such as oxygen and nitrogen