What happens to unusable energy in a food web?

that animals with start getting extinct

bacteria feeds on the unusable energy in a food web which creates a productive ecosystem

Explanation:

for example when a whale dies it falls to the ocean flour than other animals feed on it that when the bacteria feeds on the carces it resycles the unusable energy

succession returns a disturbed

ecosystem to a more stable state. this is also classified into two (2) types:

primary succession and secondary succession. the primary succession arises when

a new land is transformed and a bare rock has been exposed providing an environment

that can be occupied for the first time. while, secondary succession occurs

when a previously occupied environment was disturbed that kills much of all its

community

explanation: