pq 20-

1. Identify the scientist that first suggested a mechanism for evolution. a. Darwin b. Lamarck c. Hutton d. Lyell Topic 20 2. In rabbits the allele for soft ears (E) is dominant and the allele for rough ears (e) is recessive. In a population of 100 rabbits, 9% of the rabbits have rough ears. What is the percentage of soft-eared homozygous dominant rabbits? a. 0.09 b. 0.30 c. 0.97 d. 0.49 3. These rabbits were part of a larger population, but the local humans have built a highway and now this population of rabbits are unable to return to breed with their original population. Identify which of the following correctly describes what happened to these rabbits. a. They underwent natural selection to become a new population b. They have undergone a bottleneck effect c. They have undergone the founder effect d. The rabbit’s movement was due to genetic drift 4. identify which of the following populations would be most likely to undergo natural selection for a characteristic. A population of: a. Homozygous dominant rabbits b. Homozygous recessive rabbits c. Genetically identical rabbits d. Heterozygous rabbits

Topic 21 5. Two species of starfish live on the coast of northern California. Once species is large and lives at high tide level holding onto large rocks. The other species is small and only lives in tiny isolated tide pools. From this description, which of the following could be a mechanism of prezygotic reproductive isolation separating these two species? a. Reduced hybrid fertility b. Gametic isolation c. Hybrid breakdown d. Habitat isolation 6. A small group of ducks is blown to a remote island and is therefore separated from the main population. Many generations pass and the remote island ducks ultimately become a new species. What type of speciation occurred in the above scenario? I. Sympatric II. Allopatric III. Founder effect a. I only b. II only c. I and II d. III only Topic 22 7. Rabbits and hares look similar and share a common ancestor. Rabbits and hares (Family Leporidae) also share a common ancestor with the pika (Family Ochotonidea). According to the pictured tree, which species is BASAL to the Leporidae (hares and rabbits) a. Ochotona princeps b. Oryctolagus cuniculus c. Lepus californicus d. Pronolagus crassicaidatus 8. Using the following tree determine which letter represents the most recent common ancestor of Proonolagus crassicaudatus and Lepus californicus. a. A b. B c. C d. D Topic 23 9. Identify which of the following is an example of an ultimate cause for a behavior? a. My bird bites my hand when I startle her.

Topic 25 13. The coral snake is a highly venomous snake found in the southern united states. Identify what must be true of the king snake for the king snake to be considered a Batesian mimic of the coral snake? The king snake must be: a. venomous b. identical to the coral snake c. non-venomous d. a predator 14.