A. CELL B. ORGAN SYSTEM C. COMMUNITY D. TISSUE E. ORGANISM F. ECOSYSTEM G. ORGAN H. POPULATION I. BIOSPHERE 16. It is an individual living thing. 17. It is the smallest functional unit of life. 18. It is the part of the earth that contains all ecosystems. 19. It is made up of populations that live together in the same area. _20. It is a group of organisms of the same species living in a given area. 21. It is made up of tissues that work together to perform a specific activity. 22. It is a group of similar cells that work together to perform a specific activity. 23. It is a group of organs that work together to perform a specific bodily function. 24. It is made up of organisms living in the same area as well as the nonliving components of the environment and the sets of interaction that exist between them.
