an astronomer , - Studies the planets, stars, and galaxies., a botanist , - Studies plant life., achemist , - Studies chemistry and the behavior, properties, and composition of matter., a cytologist , - Studies cells., an ecologist , - Studies the relationship between living organisms and the environment., an entomologist , - Studies insects., a geneticist , - Studies genes, DNA, and the hereditary characteristics of living organisms., a geologist , - Studies the properties of matter that makes up Earth as well as the forces that shaped it., a marine biologist , Studies the living organisms that live in the ocean and other bodies of water., a microbiologist , - Studies microscopic life forms such as bacteria and protists., a meteorologist , - Studies the Earth's atmosphere including the weather., a nuclear physicist , - Studies the interactions and make up of the atom., an ornithologist , - Studies birds., a paleontologist , - Studies prehistoric life and fossils including dinosaurs., a pathologist , - Studies diseases caused by pathogens such as bacteria and viruses., a seismologist , - Studies earthquakes and the movements of the Earth's crust., a zoologist , - Studies animals..

Scientists

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