1. Which of the following organisms would you NOT expect to find preserved as a fossil?

2. If the frequency of a recessive allele is 0.26, the frequency of the dominant allele is:

3. The first animals can be traced back to which geological period?

4. Which of the following best illustrates a biogeographic pattern that provides evidence of evolution?

5. In addition to Charles Darwin, who is given credit for the idea of evolution by natural selection?

6. When selection favors heterozygotes over homozygotes:

7. What is the term associated with a group of species derived from a single common ancestor?

8. According to the Hardy-Weinberg equation, the frequency of heterozygous individuals is represented by which of the following?

9. The transfer of a few individuals from one natural population into a new area where such individuals didn't previously exist is an example of:

10. What type of selection is probably involved when organisms that exhibit one extreme of a trait distribution (such as height, weight, etc.) have a better chance of survival than those organisms exhibiting the opposite extreme of the same trait?

11. Which evolutionary force intensifies as the size of a population decreases?

12. Human infants with intermediate birth weights have a greater chance of survival than those with either higher or lower birth weights. This outcome is an example of _______ selection.

13. Which of the following statements is true?

14. Which of the following does NOT represent an example of an evolutionary arms race?

15. Which of the following statements is NOT true regarding mutations and their impact on populations' genetics?

16. Microfossils of ancient single cell organisms reveal:

17. If the frequency of a recessive allele in a population in the Hardy-Weinberg equilibrium is 0.5, what is the expected percent of this allele in the next generation?

18. In a study of a natural population of one endangered animal species, researchers collected the data on the observed genotypic frequencies for several genes. When they compared these frequencies with the expected values using the Chi Square test, they found a significant difference. The researchers concluded that this population is not in the Hardy-Weinberg equilibrium. What could be the possible cause?

19. Dolphins and ichthyosaurs look similar but are not closely related to one another. They are considered to be which of the following?

20. Which of the following is considered to be endothermic?

21. Mitochondria and chloroplasts are cell organelles found in the Eukaryotic organisms. What is the current theory regarding their origins?

22. Which of the following best describes Darwin's theory of evolution?

23. Which of the following is an example from the division pterophyta?

24. Which of the following is the most conclusive evidence used to establish the relationship of closely related species?

25. Choose the best response based on the following scenario: In an isolated population of 500 people, 18% are homozygous recessive for a trait that is governed by two alleles. What is the number of heterozygous people in this population?