`what is 10% rule. what is its significance? why is energy lost?

The 10% Rule means that when energy is passed in an ecosystem from one trophic level to the next, only ten percent of the energy will be passed on. An energy pyramid shows the feeding levels of organisms in an ecosystem and gives a visual representation of energy loss at each level.

Wheres the rest of the answers to the question?

It would be c. because they are the same species. the definition for genus is a principal taxonomic category that ranks above species and below family, and is denoted by a capitalized latin name