The best answer here is A
Hope this helps
<span>The body mass index (BMI) is the most popular formula associated with body fat and relative amount of adipose tissue. This takes into account the person's weight and height as a way of calculating a relative value that will give the patient an idea of where they stand (in general) among people of their body composition.</span>
Cell, tissue, organ, organ system, organism if that’s what you are referring to
Energy flows from one animal or plant eating or getting eaten to the next anima above it. As for your translation, the crickets are eating the grass then are getting eaten by the secondary consumers and finally getting fed to the largest consumer and every time you go up in the food chain more and more energy is being passed on.
