The answer is C.
Organism, population, community, ecosystem, biosphere
The term "eusocial" was introduced in 1966 by Suzanne Batra, who used it to describe nesting behavior in Halictine bees. Batra observed the cooperative behavior of the bees, males and females alike, as they took responsibility for at least one duty (i.e., burrowing, cell construction, oviposition) within the colony
carbohydrate are the largest organic molecules
Gaseous atoms and plasmic ions expand in all directions.
