A structure with similar shape but a different use
increase
NADH Dehydrogenase
Ubiquinone
Cytochrome b-c1 complex
Cytochrome c
Cytochrome oxidase complex
Vestigial structures do not harm the organism. Nature selects against only harmful traits.
It tells you when the animal that made a fossil was alive.
Radio carbon dating proves scientifically the age of a given material. If a fossil is found embedded in material that is x number of years old and a similar fossil is found x number of years older or younger then we can surmise the evolution of that species. There are thousands of examples of theoretical evolution using this method.
It allows divergence to occur
It allows populations to become genetically different.
They are thought to have separate paths of evolutionary development.
They developed along different evolutionary paths.
They had independent evolutionary development.
They lack a nucleus.
They are prokaryotes.
They are unicellular.
it was a land plant.
genus
They can produce fertile offspring.
A population of animals is split in half by a river before spectation is complete the two halves are rejoined when a drought casues the river to run dry how would this impact the two population