As energy travels up the food pyramid, to what is it lost? Select all that

apply.
1. Air
2. Heat
3. excrement/feces
4. indigestible food

1 answer

As energy travels up the food pyramid, it is lost primarily in the following ways:

  1. Heat - A significant amount of energy is lost as heat at each trophic level due to metabolic processes.
  2. Excrement/feces - Organisms lose energy through waste products that are not digested or absorbed.
  3. Indigestible food - Energy is also lost through parts of the food that are not digestible.

Air is not typically considered a direct means of energy loss in this context, so the correct selections would be 2, 3, and 4.