Question

Which of the following is the best evidence that supports the rule that only 10% of energy is transferred from one organism to another?(1 point)There are fewer organisms at the top of the food chain because there is less energy available for life processes.Dead organisms and waste are broken down by decomposers and are recycled through the ecosystem.Ten percent of organisms are fully consumed while others contain some molecules that cannot be digested.Not all organisms at the lower trophic levels will be eaten and die.

Answer 1

"There are fewer organisms at the top of the food chain because there is less energy available for life processes."

This observation (fewer top-level organisms) directly reflects the decrease in available energy at each trophic level, which is what the 10% rule describes. The other options describe recycling, digestion inefficiency, or uneaten organisms, which are partial causes but not the clearest evidence.