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Praxis Biology (5235): Practice & Study Guide Final Exam

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Choose your answer to the question and click 'Continue' to see how you did. Then click 'Next Question' to answer the next question. When you have completed the free practice test, click 'View Results' to see your results. Good luck!

Question 1 1. Which of the following structures serves as a waxy barrier, preventing water exchange between the inside and outside of the leaf?

Question 2 2. The process by which members of the same lineage diverge into a variety of different forms due to selective pressures and different environments is known as

Question 3 3. Which of the following is a true statement regarding energy flow in an ecosystem?

Question 4 4. Which of the following is NOT a first-trophic-level organism?

Question 5 5. When conditions are anaerobic in animal cells, what does pyruvate become following glycolysis?

Question 6 6. In a lab investigation designed to look at cellular respiration, bromothymol blue was added to three beakers of water. A straw was placed in each beaker. For a period of 30 seconds, students either stood still or engaged in vigorous exercise. Afterwards, they immediately exhaled into the straw for a period of 10 seconds and the following results were observed. Which of the following is the best explanation for the color change differences?

Question 7 7. What is the corresponding mRNA transcript from a DNA template with a base sequence 5'-GCA-3'?

Question 8 8. Which of the following is NOT an effect of deforestation?

Question 9 9. Which of the following is not a unit for volume?

Question 10 10. A mother that is red-green color blind and an unaffected father have two female and two male children. Both male children inherit red-green color blindness and the female children are unaffected. Which of the following is a plausible inheritance pattern for red-green color blindness?

Question 11 11. The graph below shows the frequency of expression of the range of fur color in a population of field mice that live in an area that is covered with snow most of the year. Fur color is controlled by one gene with two alleles (light and dark) that shows an incomplete dominance pattern of inheritance. A new nocturnal predator is introduced, and the predator is better adapted to seeing highly contrasting colors when hunting. Which of the following graphs represents the range of fur color following predation by this predator over a long period of time?

Question 12 12. Which of the following is most likely related to density-dependent regulation?

Question 13 13. A blue whale is most closely related to which of the following animals?

Question 14 14. Which of the following correctly shows the process of protein synthesis?

Question 15 15. An autosomal recessive trait is expressed in 4% of a population in Hardy-Weinberg equilibrium. What percentage of the population are carriers?

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Praxis Biology (5235): Practice & Study Guide Final Free Practice Test Instructions

Choose your answer to the question and click 'Continue' to see how you did. Then click 'Next Question' to answer the next question. When you have completed the free practice test, click 'View Results' to see your results. Good luck!

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