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TExES Science 7-12: Theory of Biological Evolution Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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Question 1 1. The study of the allelic, genotypic, and phenotypic variation within a population is referred to as _____

Question 2 2. A new mutation allows a cheetah to run faster and hunt down more prey than its slower counterparts. This mutation increased the _____ of the cheetah.

Question 3 3. Which of the following is a prezygotic barrier?

Question 4 4.

Which of the following statements does NOT represent the idea of heritability by acquired characteristics?

I. A body builder develops stronger muscles during the course of his life, so his son will be strong as well.

II. A cat that lost its tail will produce offspring with shorter tails.

III. Over time, a population of heavily striped zebras increased over those without as much striping, as the heavily striped ones had a competitive advantage over the zebras with fewer stripes, and were, therefore, better able to reproduce.

Question 5 5. What is artificial selection?

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Question 6 6. Which of the following is an example of convergent evolution?

Question 7 7. What do we call the idea that all species on earth today came from past species?

Question 8 8. Why do scientists use the Hardy-Weinberg equation?

Question 9 9. Using the criteria outlined in the Hardy-Weinberg equilibrium, determine which of the following populations can be balanced.

Question 10 10. Resident and transient orcas that do not mate due to different behaviors is an example of what type of speciation?

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Question 11 11.

Which of the following is an example of natural selection?

I. Albino animals are rare in nature because they are easy for predators to find.

II. The fastest gazelle is least likely to be eaten by a lion.

III. The gorilla that is strong enough to become alpha male is the most likely to pass on his genes.

Question 12 12. A group of organisms that can interbreed and form fertile offspring are known as:

Question 13 13. _____ can be defined as a change in a characteristic within a population over time.

Question 14 14. A group of penguins gets separated due to a glacier. What type of speciation has occurred?

Question 15 15. How do random mutations occur?

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Question 16 16. Which of the following is NOT a principle of Darwin's theory of evolution?

Question 17 17. A scientist notices several birds in the same area that are similar in appearance with the exception of different beak lengths. She observes that one type of bird with a particularly long beak can pick bugs out of holes in the ground, while the birds with shorter beaks cannot. The longer beak is an example of

Question 18 18. What do we call naturally occurring differences in a population of organisms?

Question 19 19.

Which of the following is an example of a homologous structure or trait?

I. Arm bones of a human and wings of a bird

II. Wing of a penguin and wing of a mosquito

III. Beak of a penguin and beak of a duck

Question 20 20. When a new species develops, which of the following could have occurred?

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Question 21 21. The study of the genetic variation within a population is known as:

Question 22 22. What is the measure of the degree of difference between traits that are expressed in a population?

Question 23 23.

Select the statements about Hardy-Weinberg equilibrium that are true.

I. Hardy-Weinberg equilibrium is often found in the wild.

II. The allele frequency of a population in Hardy-Weinberg equilibrium does not change.

III. The Hardy-Weinberg equation predicts the evolutionary agent affecting a population.

Question 24 24.

Which of the following is an example of analogous structures or traits?

I. Leg bones of a human and leg bones of a penguin

II. Wing of a penguin and wing of a mosquito

III. Beak of a penguin and beak of a duck

Question 25 25.

Which of the following criteria must be met for Hardy-Weinberg equilibrium?

I. Beneficial trait

II. Non-random mating

III. Large population size

TExES Science 7-12: Theory of Biological Evolution Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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