Evidence of Evolution 1

Which layer is the youngest

• 1
• 2
• 3
• 4

Which of the following is the collection of life's remains found in sedimentary rock?

• natural selection

• homologous structures

• Charles Darwin

• the fossil record

The changes of species over time

• Embryonic 
• Natural selection 
• Mimicry 
• Evolution 

The picture shows a/an ___________

• homologous structure

• vestigial structure

Which of the following is an example of a vestigial structure?

• the wings of a red-tailed hawk
• the hind limbs of a house cat
• the fins of sharks
• the tailbone of a human

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

If two organisms have similar traits of DNA they are probably

• share a common ancestor
• share a common environment
• share a common population
• speciation

Study of embryos of various organisms to show a common ancestor because of similarities in development

• natural selection
• embryology
• speciation
• evolution

When all of the organisms of a species have died it is called

• evolution
• extinction
• adaptation
• natural selection

Recently, scientists have been able to use ___________to find common proteins and amino acids to determine how closely related species are.

• DNA

• Vestigial structures

• Fossils

• Homologous structures