a person who studies the different climates

study of water on earth

study of hormones and their composition and function

stucture and function of living things ,such as cells,tissues,organs,and organ system

the study of the moon,stars,and other objects in space

study of plants and everything about them

study of reptiles and amphibians

study of viruses and viral diseases

hydrology

calcite

entomology

physics

pathology

zoology

hematology

genetics

virology

ichtyology

chemistry

volcanology

the study of freshwater systems,such as lakes,ponds,and rivers

the study of naturally occurring chemical compounds and their properties;examples include quartz,fuorite,and calcite

the study of the bones and the disorders and diseases of the skeletal system

the study of earth's and moon and its geology

science dealing with the atmosphere and weather

study of the nature,formation,and movement glaciers

study of development of living things before birth

study of of life in the ocean

botany

epidemiology

immunology

herpetology

study of fossilized plants and animals remains to gain clues about earth's past

study of animals with backbones and everything about them

study of worms,particularly parasite forms such as tapeworms

study of the functions of the structures of the body (often combined with anatomy concepts)