How to talk about Science and Scientists???

Some of the important explorers of knowledge and the terms by which they are they known are specified below.
An Anthropologist-Scientist who is interested in the development of the human race.
An Astronomer-Scientist who studies the heavens,planets,galaxies and stars.
A Geologist-Scientist who explores the physical qualities of the earth.
A Biologist-Scientist who studies all living matter.
A Botanist-Scientist who studies the plant life.
A Zoologist-Scientist who studies the animal life.
An Entomologist-Scientist who is professionally involved in insects.
A Philologist-Scientist who studies the language.
A Semanticist-Scientist who studies the psychological effects of words.
A Sociologist-Scientist who studies the culture,structure and customs of different societies.