1. Evidence of Evolution
Practice Quiz

2. The number and location of bones of many fossils vertebrates are similar to those in living vertebrates. This is evidence of what?
Tendency towards perfect organisms.
Common Descent
Analogous structures
Acquired Traits

3. Answer:
Common Descent - They came from the same ancestors this is an example of homologous structures.

4. Molecular evidence in support of natural selection includes: (choose all correct answers)
Universal genetic code
Vestigial structures
Similarities in amino acid sequence in various organism
The tendency toward perfect, unchanging DNA

5. Answer:
Universal Genetic Code
Similarities in amino acid sequence.

6. Organisms that have more DNA in common are more closely __________.

7. Answer:
Related

8. Three organisms all have a version of the hemoglobin protein
Three organisms all have a version of the hemoglobin protein. A portion of 50 amino acids (AA) are studied. Organism A & B share 42 AA, A & C share 48 AA, B & C share 44. Which are more closely related?

9. Answer:
A & C are closely related.

10. Sharks and Dolphins have both Dorsal and Pectoral Fins, What might explain this? (mark all correct answers)
Divergent Evolution
Common Descent
Vestigial Structures
Sexual Selection

11. Answer:
Divergent Evolution & Common Descent

12. Fossil evidence indicates that dolphins evolved from ancestors that walked on land. Which example is the best piece of evidence for this statement?
Presence of Teeth
Presence of Ribs
Presence of Internal Leg Bones
Presence of Muscle tissue in the fins

13. Answer:
Internal Leg bones.

14. Convergent Evolution is how we get __________ structures
Convergent Evolution is how we get __________ structures. This type of evolution helps us know how habitats effect organisms traits.

15. Answer:
analogous

16. Divergent Evolution is how we get __________ Structures
Divergent Evolution is how we get __________ Structures. This type of evolution helps us know how habitats effect organisms traits.

17. Answer:
Homologous

18. Why does the fossil ARCHAEOPTERYX show evidence of evolution?

19. Answer:
Dinosaurs and birds are closely related. Archaeopteryx is a feathered dinosaur.

20. Why was Tiktaalik an important fossil?

21. Answer:
It showed a developing limb.

22. How can we tell how old a fossil is?

23. Answer:
Carbon Dating or relative dating (rock layers)

24. DNA is important for relatedness why? Pick all that apply…
Same Bases, ATGC
Same Structure
Same Amino Acids

25. Answer:
All -
Same Bases, ATGC
Same Structure
Same Amino Acids

26. What terms are used when comparing anatomy?

27. Answer: Homologous Structures Analogous Structures
Vestigial Structures

28. What is Embryology and why do we compare embryos?

29. Answer:
The study of Embryo’s
Similarities from a common ancestor.