Day 9 Quiz - Evidence for Evolution

Structures with the same parts have different functions; suggests that organisms share a common ancestry

• vestigial structures
• homologous structures
• adaptive radiation
• fossil

How do fossils provide evidence that evolution has happened on Earth?

• Fossils show how the sizes of certain animals has changed drastically over millions of years
• Fossils show that some species have gone extinct
• Fossils show how life forms present today are different than those from the past
• Different sedimentary rock layers provide evidence for how the environment has changed over time

This diagram represents bones in the hind limbs of fossil horses and modern horses These fossils indicate that horse evolution included which type of change?

• An addition of vestigial toe bones

• A change from four toes to one toe

• A loss of genes that control toe development

Which of these can be inferred from the fact that protein sequences in one organism resemble those of another organism?

• Shared ancestry

• A great number of mutations

• Coincidence

What is suggested by the similarity of early embryos of different species of vertebrates?

• That all vertebrates are the same inside

• Similar environments in the past

• Evolution from a distant common ancestor

Which of these describes structures that serve the same function, but the organisms are not related to each other?

• Vestigial structures

• Homologous structures

• Analogous structures

Which of these lines of evidence provides the strongest support of evolution from a common ancestor?

• DNA

• Fossils

• Comparative Anatomy

Which term best describes the process by which a single species evolves into many new species to fill available niches?

• Biogeography

• Natural selection

• Adaptive radiation

An ancestral species from which later species evolved

• Common Ancestor

• Embryo

• Homologous structure

What is is the study of how and why plants and animals live where they do?

• Evolution

• Adaptive Radiation

• Biogeography