Question

which of the following is the largest level of organization in biology?
biosphere
order
planets
ecosystem

Explanation:

In biology, the biosphere encompasses all living organisms on Earth and their interactions with the environment. An ecosystem is a community of living and non - living components in a particular area. Order is a taxonomic rank for classifying organisms. Planets are not a biological level of organization. The biosphere is the largest level among the given options.

Answer:

biosphere