Approximately how much energy is transferred from one step in a food chain to the next?

Found this off of google, "At each step up the food chain, only 10 percent of the energy is passed on to the next level, while approximately 90 percent of the energy is lost as heat."

Hope this helps, have a great/night and stay safe! :) :D :3

d is the answer

sorry if its wrong!

b tumor cells have a cell wall instead of a membrane

explanation:

tumor cells different from normal cells because tumor cells have a cell wall instead of a membrane.