An entomologist is a person who studies insects.
That's an entomologist.
What is the name of a person that studies organisms
me!
An Entemologist
A person who studies sand is known as a psammologist.
A person who studies sound is called an acoustician.
What is the name of a person that studies derivation of
A person who studies audiology would be called an audiologist.
Entomologists
A person that studies (insects), bugs is an entomologist
A horologist studies time.
Studies bugs!