Body mass index (bmi) is a measure of body weight relative to which factor?
a. height
b. gender
c. age
d. ethnicity

Body mass index (BMI) is a measure of body weight relative to height.

BMI is basically a calculation of a person's weight/height and has categories that informs you if you are overweight, underweight, or at a normal weight. 

I’m not sure what your question is but this man is clearly choking. you would need to preform the heimlich maneuver to clear the mans airway. if all fails, call medical right away. i hope this ! : -)

Bmust be the answer, as technically all organs move, so a is incorrect. all organs are made of different types of cells, so that isn’t a problem, so c is also incorrect. human hearts are very similar to many other animals’ hearts, so d is also incorrect, yet the heart is made of muscle, which is hard to grow in the lab so it would be correct to say b