Bees are generally studied by entemologists, but an entemologist is someone who studies insects in general. If a person were to study bees to the exclusion of any other type of insect he would be an apiologist.

Stay away from the exclusion zone.

The exclusion made him think twice about his behaviour.

This is the Pauli exclusion principle. Wolfgang Pauli was a Jewish physicist, Nobel prize laureate.

Competitive exclusion principle.

molecular exclusion chromatography is the exclusion or separation of protein particles based on their molecular size.

Bhubanyu Basu