VOL 4 Test 8 - Plant Behaviour

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Questions 1-10

Complete the notes below. Write ONE WORD ONLY for each answer.

Changing ideas

  • Scientists once thought of plants as being 1 organisms
  • Now there is evidence that this is not true

Recent studies

Great Lakes sea rocket

  • Found on 2
  • When near other plants, it normally produces extra 3 to compete for nutrients
  • However, it behaves differently if it is related to the other plants

Sagebrush and thornapple

  • Recognise surrounding plants by the type of 4 that they reflect
  • Identification is possible because all plants have a particular 5

Dodder plant

  • Is unable to produce 6
  • Needs to feed off another plant to survive
  • Affects farmers’ crops, e.g. alfalfa, 7 and citrus
  • Identifies suitable "hosts" by detecting the 8 they give off
  • Moves in a 9 to check the environment, then grows towards the most suitable host

Plant science

  • Use of modern 10 provides evidence of plant behaviour