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

(a)  

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

A bat wing and a butterfly wing are both used for flying but they are made differently. What type of structure is this?

• Homologous structure

• Analogous structure

• Vestigial structure

• Fossil structure

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.

The moth wing and the bat wing are example of structures.

(a)  

• Analogous
• Homologous
• Vestigial
• Fossil

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

• 1

• 2

• 3

What type of evidence is shown with the diagram above?

• Molecular

• Anatomical

• Embryological

• Fossil

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.

Match the following

• Structures in the body of an organism that no longer work.

• Comparative Embryology

• Comparing embryological development of different species

• Vestigial Structures

• Same structure different function

• Biochemical Evidence

• Comparing DNA and amino acid sequences of different species

• Homologous Structure

• Same function different structure

• Analogous Structure

Which of the following is the correct definition of natural selection?

• The idea that organisms less equipped for their environment tend to survive longer

• The idea that organisms more well equipped for their environment tend to survive longer

• The idea that organisms more well equipped for their environment tend to not survive

• None.