Evidence of Evolution Vocab

The most recent ancestral form or species from which two different species evolved is known as ________________________.

• a common ancestor.
• an embryonic stage.
• development.
• evolution.

What type of evidence is represented in the picture above:

• Fossils

• Vestigial Structures

• DNA

• Homologous Structures

The similarities of the bones in the diagram provide evidence that---

• The organisms shown lived in the same natural envionrment
• The organisms shown may have developed from a common ancestor
• The organisms shown have the same genetic diseases
• All vertebrate species have identical forelimbs

The diagram shows fossils in different rock layers. Which of these statements about the age of these fossils is most likely correct?

• Fossil A and C are the same age
  
• Fossil B is older than fossil C
• Fossils A is older than fossil B
• Fossil D is older than fossil C

According to this cladogram, sharks are MOST closely related to which organism? 

• Amphibians
• Ray finned fish
• Crocodiles
• Birds

In this image, the yellow shaded bones all appear similar in structure. However, their functions differ. Which describes the function of the yellow bones in the bat?

• Fingers to grasp objects

• Leg to walk on

• Wing for flying

• Fin for swimming

What type of structure does this image illustrate?

• Homologous structures

• Analogous structures

• Vestigial structures

The appendix, tailbone, and wisdom teeth are all examples of what type of structure in humans?

• Homologous

• Analogous

• Vestigial

• Modern

The fossil record help scientists

• better understand the kinds of organisms that lived in the past

• better understand how the environment has changed over time

• better understand how organisms have evolved over time

• all of the above

What is common ancestry?

• When a species no longer exists

• When organisms are descended from a single ancestor