Organisms in the environment quiz

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1. What is meant by the term limiting factor?

  • Something which stops photosynthesis from being affective.
  • Something which prevents the rate of photosynthesis increasing.
  • Something that stops a plant from growing.
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2. What is the word equation for photosynthesis?

  • Carbon Dioxide + Water ----> Starch + Oxygen
  • Carbon Dioxide + Water ----> Glucose + Oxygen
  • Carbon Dioxide + Water ----> Glucose + Nutrients

3. Name the solution used to test a leaf for startch

  • Iodine
  • Nitrogen
  • Hydrogen

4. 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.

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

  • Availability of water.
  • Predators.
  • Competition.

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