evidence of evolution
kalem
Embryology
the study of the similarities and differences in the embryos of different species
similarities in embryos are evidence of common ancestry
Fossil Layers
Homologous, Analogous, and Vestigial Structures
Biochemistry
Fossil Layers
Fossil are a window into the past,through time the climate became drier, and grasslands slowly replaced the marshesThe oldest fossils show what the earliest horses were like. They evolved a single large toe that eventually became a hoof. This would help them run swiftly and escape predators. Their molars changed over time.
Homologous, Analogous, and Vestigial Structures
Homologous - structures that are related organisms because they were inherited from a common ancestor
Analogous - are structures that are similar in unrelated organisms
Vestigial Structures - evolution has reduced their size because the structures are no longer used
Biochemistry
today scientist compare DNA. similar DNA sequences are the strongest evidence for evolution from a common ancestor