Saamaynta jimicsiga ee neefsashada iyo garaaca wadnaha

Identifying independent variable (amount of exercise) and dependent variable (heart rate or breathing rate). Identifying control variables (the person and the length of time spent exercising). The independent variable (amount of exercise) is categoric data and goes on the x-axis of a bar chart. The dependent variable (heart rate or breathing rate) goes on the y-axis of a bar chart. Using knowledge of cellular respiration to explain the results.