Evolution & Pedigree Review

A structure that serves no purpose in an organism

• adaptation

• homologous structure

• vestigial structure

• artificial selection

The dog breeds we have today were developed through . . .

• natural selection

• adaptation

• vestigial structure

• artificial selection

A change in a population over a period of time

• evolution

• natural selection

• adaptation

• homologous structure

The human arm, the whale flipper, and a bat wing are traits that may have evolved from a common ancestor

• evolution

• natural selection

• homologous structure

• vestigial structure

Any change/ variation that can help an organism to survive in its environment

• homologous structure

• adaptation

• natural selection

• vestigial structure

This is when individuals survive long enough to reproduce because they were best adjusted to their environment.

• evolution

• natural selection

• adaptation

• artificial selection

The STRONGEST evidence for change over a long period of time is?

• embryo studies

• fossils

• direct observation of living species

• DNA

The finches on the Galapagos Islands were similar in form EXCEPT for variations of their beaks. Darwin observed that these variations were useful for?

• attracting a mate

• defending a territory

• building nests

• gathering food

During a severe drought, a dry lake was explored for fossils. The diagram below represents the fossils uncovered and the layers they were in. According to this information, this area was once a . . .

• forest that was replaced by a freshwater lake

• freshwater lake that was replaced by a desert

• saltwater sea that was replaced by a forest

• freshwater lake that was replaced by a forest

Natural selection is also known as?

• overpopulation

• speciation

• survival of the fittest

• genetic drift