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| 1. |
A fundamental characteristic of life on Earth is that __________.
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| 2. |
Homeostasis is the process by which __________.
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| 3. |
Which of the following groups of organisms contains prokaryotic cells? Please select the most appropriate answer.
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| 4. |
Organisms that can extract energy from light are called __________; organisms that must obtain energy from molecules made by other organisms are called __________.
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| 5. |
Science assumes that natural laws (such as the law of gravity) __________.
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| 6. |
The process of evolution involves __________.
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| 7. |
You discover a new type of organism in the back of your fridge. Luckily, your roommate is a biology major and takes you to the lab where he works. You put a small piece of the fuzzy critter under the microscope and see that it is made of very simple, single cells with no nucleus. What type of organism might this be?
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| 8. |
A scientist is testing whether a new cancer drug will work on prostate cancer in humans. To properly interpret results of an experiment, control experiments are needed. Which of the following treatments would serve as a control in these experiments, so that the researchers can conclude that the changes that they see in the patients are due to the drug?
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| 9. |
Your textbook lists seven characteristics that living organisms possess as a group. However, if you could distill these seven characteristics down to two general descriptive properties held in common by all living organisms, what would they be?
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| 10. |
The organic complexity and organization characteristic of living organisms depends on the periodic capture of raw materials and energy. Ultimately, the source of these materials and energy is __________.
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| 11. |
Energy, like gasoline for your car, is required for organisms to survive, and even thrive, in the face of diverse environments. An autotrophic organism __________.
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| 12. |
Another way to describe the "scientific method" would be that it is __________.
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| 13. |
Experiments are carefully designed in an attempt to __________.
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| 14. |
Natural selection is best measured by __________.
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| 15. |
A basic understanding of basic biological concepts __________.
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| 16. |
Which of the following terms includes all of the others?
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| 17. |
The diversity of life is mainly due to __________.
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| 18. |
You are a NASA scientist and have discovered an organism in outer space that contains its genetic material in the cytoplasm rather than in a nucleus. Given this characteristic, how might you classify this organism?
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| 19. |
Your baby starts crying. Since she hasn't eaten in two hours, you declare, "The baby must be hungry." Your statement is a(n) __________.
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| 20. |
Natural selection would be best illustrated by which of the following?
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| 21. |
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| 22. |
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| 23. |
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| 24. |
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| 25. |
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| 26. |
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| 27. |
The diagram below indicates the levels of organization of matter found in the natural world. Match each illustration with the correct term.
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For each item below, use the pull-down menu to select the letter that labels the correct part of the image.
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| 28. |
The diagram seen here is a continuation of the previous organization of matter diagram. Complete this diagram by matching the proper term with each illustration.
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For each item below, use the pull-down menu to select the letter that labels the correct part of the image.
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| 29. |
Identify the structures indicated on this color-enhanced image of a plant cell.
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For each item below, use the pull-down menu to select the letter that labels the correct part of the image.
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| 30. |
Identify the structures indicated with A, B, and C on the micrograph below.
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For each item below, use the pull-down menu to select the letter that labels the correct part of the image.
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| 31. |
Which of the following is paired incorrectly?
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| 32. |
A scientist examines an organism and finds that it is eukaryotic,
heterotrophic, and multicellular and that it absorbs
nutrients. She concludes that the organism is a
member of the kingdom
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| 33. |
Which statement is correct?
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| 34. |
Choose the answer that best describes the scientific method.
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| 35. |
Which of the following are characteristics of living things?
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| 36. |
The three natural processes that form the basis for evolution
are
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Answer choices in this exercise are randomized and will appear in a different order each time the page is loaded.
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