Question

Ecologists study how relationships between biotic and abiotic factors impact the many levels of organization on earth. What level of organization is defined as a living thing that can function on its own with the ability to reproduce, respond to environmental stimuli, maintain an internal environment, and metabolize food and excrete waste?
A) community
B) ecosystem
C) organism
D) population

Answer 1

The correct option is C.
The organism level of the ecosystem describes the survival of  a particular member of a specie in the ecosystem. An organism has to interact with both the biotic and the abiotic components of the ecosystem in which it founds itself in order to survive.