Which best describes the trophic level of an organism? the number of calories it consumes the amount of energy it produces its life cycle from birth to death its position in a food chain

It's position in the food chain because a trophic level is like a hierarchy, so in the food chain it would be consumers at top, then secondary and primary consumers, and at the bottom producers. 

Your answer is the position of the food chain hope this helps

Yes he thought they should be left to chance why, because he thought that was the best thing to do