A scientist for botany in general is refered to as a Botanist.
A scientist who studies botany is called a botanist. Botanists typically specialize in the study of plants, their classification, physiology, ecology, and evolution.
A botanist is a scientist that studies plants.(Botany)
A scientist that studies plants is known as a botanist.
a biologist specializing in the study of plants
An ecologist studies pollution
A mineralogist studies minerals.
The kind of scientist who studies Urology would be a Biologist, since Urology concerns a biological function (urination). If you mean the kind of doctor who studies Urology, that would be a Urologist.
meteoroligists
Audiologist
An Ichthyologist.
A zoologist.