Question

a. increases
b. decreases
c. stays the same
d. goes up and down

1. what happens to most of the energy as it moves from one trophic level to the next as shown in the energy pyramid?

flow of energy in trophic levels
a. lost as heat to the environment
b. consume by the organism
c. stay within the organism
d. goes up and down

Explanation:

In an energy pyramid, energy transfer between trophic levels follows the 10% rule. Most energy (about 90%) is lost as heat during metabolic processes like respiration. This is shown in the diagram with heat arrows. Options B and C are incorrect as only a small portion is consumed/stored. Option D is wrong as energy flow is unidirectional and decreases.

Answer:

A. lost as heat to the environment