=A Microbiologist studies microscopic organisms.=
meteoroligists
I think marine biologists, but I can't guarantee it.
There are two distinct disciplines the study of gases. Aerostatics is the study of gases that are stationary or not moving. It studies density allocation. Aerodynamics is the study of gases that are in motion. People in this field study the motion of air and how it interacts with solid objects.
Firstly, koalas are not bears.There is no particular name for someone who studies koalas.People who study the field of animal Biology are zoologists. While there are specialised areas within this broad parameter (such as ornithologists, who study birds), there is no particular name for one who studies koalas. It is too narrow a field.
Evolutionist .
th e ways of
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.
Botanist
seismologist
a biologist
cosmologists