Practice Quiz

IB Biology Exam Prep - Question List

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11. In the water cycle, which of the following processes water to the atmosphere?

I. Transpiration
II. Precipitation
III. Evaporation
  1. I only
  2. II only
  3. III only
  4. II and III only
  5. I and III only
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12. In a community, which of the following are defined by an animal’s niche EXCEPT:
  1. Place in the food chain
  2. habitat
  3. How it reproduces
  4. Life history
  5. None of the above
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13. All of the following are vertebrates except:
  1. Toad
  2. Tiger
  3. Gila monster
  4. Lobster
  5. Hamster
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14. An unknown substance is added to the red cabbage pigment and the color changes from blue to pink. Which of the following substances could NOT be the unknown substance?

Here is the pigment table for red cabbage once again:

pH 1-2 Pink/Acid
pH 3-4 Dark Red/Acid
pH 5-6 Violet/Acid
pH 7-8 Blue/Neutral-Base
pH 9-10 Blue-Green/Base
pH 11-12 Green-Yellow/Base
  1. Baking soda
  2. Acetic acid
  3. Hydrochloric acid
  4. Hydrofluoric acid
  5. Aluminum chloride
See answer
15. What would a student observe if vinegar was slowly added to a red cabbage pigment solution already containing sodium hydroxide (NaOH)?

Here is the pigment table for red cabbage once again:

pH 1-2 Pink/Acid
pH 3-4 Dark Red/Acid
pH 5-6 Violet/Acid
pH 7-8 Blue/Neutral-Base
pH 9-10 Blue-Green/Base
pH 11-12 Green-Yellow/Base
  1. The solution would turn from blue to green then to blue
  2. The solution would turn from pink to green then to blue
  3. The solution would turn from pink to violet, then to blue green
  4. The solution would turn from pink to yellowish-green, then to blue
  5. The solution would turn from blue-green to blue, then to pink
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