FHSST Biology/Contents/Index/DCC/Origin of species/Theories/Evolution

< FHSST Biology‎ | Contents‎ | Index‎ | DCC/Origin of species

Evolution is a gradual process that occurs over time. As a species is exposed to different selection pressures, it is forced to adapt to changes in its surroundings. Thus, a naturalist can observe a change in the features of a species.