8th Grade Evolution Assessment LS4-2

First & Last Name

1. What patterns of similarities do you see in these embryos?

• All the embryos have tails in the earliest stage
• The later stage embryos all look exactly alike
• All the embryos have wings
• All the embryos have fur

2. What do the similarities between ancient organisms and modern organisms tell us?

• Ancient organisms are still around
• There is no relationship between modern organism and ancient organism
• There may be an evolutionary connection between the ancient organisms and modern organisms
• All of these

3. Humans, birds, dolphins, and lizards all have similar forearm bones. What is the reason for this?

• They live in similar environments
• The function of these bones is the same in all animals
• They have a common ancestor
• They are analogous

4. Bat wings and bird wings are an example of_____________.

• Homologous structures
• Analogous structures
• Vestigial structures
• All of these

5. Individuals with favorable traits survive, reproduce and pass on their traits to their offspring. What is this process called?

• Mutation
• Evolution
• Adaptation
• Natural selection

6. Which of the following pieces of evolutionary evidence deals with comparing similar structures in various species?

• The Fossil record
• Comparative anatomy
• Comparing DNA
• Layers of the Earth

7. A whale having hip bones is an example of a________.

• Homologous structure
• Analogous structure
• Vestigial structure
• All of these

8. If an organism has a vestigial structure, the structure likely once had a function

• In a close relative
• In an embryo
• In an early ancestor
• In an unrelated organism