Chapter Test Which of the following body systems is stressed by extremely low body fat?
OA) digestive system
OB) muscular system
OC) reproductive system
OD) respiratory system

OA) digestive system

Explanation:

The levels of body fat are critical for normal body function, and not only high but also low body fat levels may lead to different health problems including hair loss, skin problems, abnormal cardiac rhythm, etc. Moreover, it has been shown that extremely low body fat produces digestive disturbances and gastrointestinal problems, which are often associated with eating disorders such as bulimia and anorexia. In young adult persons, body fat percentages between 12–20 %  and 20–30 % in males and females, respectively, are considered to be normal.

determining a set of tasks for each goal

football or basketball players.