Humans have a large impact on the environment—pollution, land use change, climate change, etc. We are just beginning to realize that we also cause evolutionary change, and the consequences of this. Ecology and evolution are strongly interconnected. What Is Evolution? Evolution can be viewed as genetic change over time or as a process of descent…
Patterns in Macroevolution Fossils Trace of any organism that lived in the past 99% extinct, used as evidence for evolution Law of Succession: resemblance between living and fossil forms in the same region Relative Dating Fossils formed in sedimentary rock in which the sediments form layers that differ in colour, thickness and composition Principle of…
Species: Latin word meaning “kind” Speciation: The origin of new species Macroevolution: The evolutionary changes above the species level eg. The appearance of feathers during the evolution of birds from one set of dinosaurs Anagenesis – one species over time becomes another species Cladogenesis– one species, over time, splits and becomes two species Morphogensis– look…