Answer:
The levels, from smallest to largest, are: molecule, cell, tissue, organ, organ system, organism, population, community, ecosystem, biosphere.
Explanation:
Possession of flagellum is not a taxonomic feature. many different unrelated organisms have flagellum. euglena, zooflagellates but also some fungi or even human sperm cells.
Jensibwkue. Heberibekkowbebdir r
Protections the ozone layer
Maintaining animal and human food chain
Preserving potable water and making efficient use of non renewable resources