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Holt McDougal Biology Chapter 1: Biology in the 21st Century 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. Which part of the microscope would you use to make small adjustments to the magnified image?

Question 2 2. Which of these was not included as part of creating a hypothesis?

Question 3 3. Which of the following is the best example of a null hypothesis?

Question 4 4. Which of the following is NOT true of energy utilization?

Question 5 5. Which is an example of a variable?

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Question 6 6.

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 7 7. Which of the following best describes a hypothesis?

Question 8 8. What might be the reaction of a botanist who discovered a new plant in the Saharan desert? Why would they react that way?

Question 9 9. A hurricane hit an island where the only trees were palm trees. What might a biologist say about the ecosystem after the hurricane?

Question 10 10. If the null hypothesis states, 'There is no relationship between the amount of sleep a person gets each night and the amount of coffee they drink,' which of the following could be an example of an alternative hypothesis for this study?

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Question 11 11. What is DNA technology?

Question 12 12. Frank performs an experiment to determine whether the amount of cookies a person eats has an affect on their blood sugar level. Frank finds a strong relationship between the amount of cookies a person eats and their blood sugar level, with a p-value of 0.02. Which of the following shows the correct way for Frank to report his findings? How does one properly write that the alternative hypothesis was correct?

Question 13 13. It is important to design experiments so that they are

Question 14 14. What is the difference between species diversity and genetic diversity?

Question 15 15. Why might a GMO be harmful?

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Question 16 16. What does GMO stand for?

Question 17 17. Which of these following words should be avoided when creating your own hypothesis?

Question 18 18. Cells convert energy stored in sugar into energy stored in a more useable form of energy. What molecule contains this more useable energy?

Question 19 19. At what step in the scientific method does a scientist propose the problem that he or she wants to solve?

Question 20 20. Which part of the microscope do you look through to see a magnified image?

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Question 21 21. Which of the following is a p-value that would show statistical significance?

Question 22 22. Why is the compound microscope named as such?

Question 23 23. If you wanted to know how exercise affects weight loss in adults, which variable(s) would need to be controlled for in your experiment?

Question 24 24. Which is NOT a benefit of DNA technology?

Question 25 25. A scientist is running a test of her hypothesis. Which step of the scientific method is she executing?

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Question 26 26. If you are looking through an eyepiece with 10x magnification, and the objective lens you're using is 40x magnification, what is the total magnification of the image?

Question 27 27. Dr. Smith is studying algae. Would she consider ponds in her research on ecological diversity? Why or why not?

Question 28 28. Which of the following reactions is endergonic?

Question 29 29. Which is a safety concern regarding DNA technology?

Question 30 30. While creating a project for the science fair, you know that you want to test different materials out to see which absorb the most water. Which of the following would be an example of a good hypothesis?

Holt McDougal Biology Chapter 1: Biology in the 21st Century Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next question. You can skip questions if you would like and come back to them later with the "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. You will lose your work if you close or refresh this page. Good luck!

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