Ecology The science of the relationships between organisms and their environments.
Biology The science of living organisms and life processes, including the study of structure, functioning, growth, origin and distribution of living organisms.
Botany The biological science of plants.
Dendrology The botanical study of trees.
Morphology The branch of biology dealing with form and structure.
Zoology The biological science of animals.
Meteorology The science dealing with the phenomena of the atmosphere (especially weather and weather conditions).
Climatology The meteorological study of climate.