their liver is not working properly or lack of exercise
Answer: In a classroom, when students are assigned to an expert group and then go back to another group to explain what they have learned, it is called jigsaw classroom
Explanation:
Jigsaw classroom is a method in which students are dependent on each other to understand the concepts. It is a very effective class activity that allows students to interact with one another and not only promotes better learning but also motivates the student. Moreover, the students learn to cooperate with one another and share responsibility.
The correct answer for the given question above would be the second option. If your training program is focused on improving how well your heart and lungs work together to supply oxygen to your body during exercise, then the related factor that you are targeting is cardiovascular efficiency. Cardiovascular efficiency measures how well your circulatory system is able to deliver oxygen to the rest of the body.