Evidence for Evolution Quiz 2

The fossils found closer to the surface of the ground are generally -

(a)  

• Younger & more complex
• Older & simpler
• Younger & simpler
• Older & more complex

A human arm and a whale fin have similar bone structure but the whale fin is used for swimming and the arm is used for reaching and grabbing. What type of structures are these?

• Homologous structures

• Analogous structures

• Vestigial structures

• Fossil structures

When comparing the DNA of two different organisms, the more differences in the DNA base pairs the more-

• Closely related they are.

• Distantly related they are.

• It doesn't prove anything.

• They look alike.

Which of the pictures above would be examples of homologous structures? (pick 2)

• 1

• 2

• 3

The similarities of bone structure in the diagram provide evidence of what?

• The organisms probably use there forelimbs for the same thing.

• The organisms evolved from a common ancestor.

• The organisms have the same DNA.

• All vertebrate species have identical forelimbs.

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

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

Who is the most closely related?

• Agnatha and Reptilia

• Aves and Reptilia

• Aves and Chondrichthyes

• Mammalia and Agnatha

Which is not evidence for evolution?

• many animals have homologous structures due to common ancestry
• Many animals have vestigial structures from an ancestor
• We can observe changes in life forms by observing the fossil record
• All of these are evidence for evolution

The appendix, which is not needed to survive, is conisdered to be a

• Homologous Structure

• Analagous Structure

• Vestigial Structure

• Homology