Organisms in the environment quiz

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1. Why is it hard to make an investigation that is outdoors valid?

  • There are too many variables which are difficult to control.
  • Your equipment could be damaged by weather.
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2. Name the solution used to test a leaf for startch

  • Iodine
  • Nitrogen
  • Hydrogen

3. Which one of these is a physical factor that affects the distribution of a plant.

  • Availability of water.
  • Predators.
  • Competition.

4. What is the result of an iodine test for starch?

  • The leaf will turn black/blue
  • The leaf will turn white
  • The leaf will turn brown

5. What is meant by reproducible results?

  • If the investigation is repeated and the same results are collected.
  • When someone copies the results.


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