Lab 21.docx - Lab 21 Plant Circulation Pre-Lab Questions 1 When did vascular plants evolve How was this timeline uncovered Vascular plants evolved about

Lab 21.docx - Lab 21 Plant Circulation Pre-Lab Questions 1...

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Lab 21 Plant Circulation Pre-Lab Questions 1.When did vascular plants evolve? How was this timeline uncovered? 2.How does a vascular system help a plant grow bigger? 3. In 2 – 3 sentences, discuss how gas exchange affects transpiration. - During photosynthesis, the stomata needs to be open to allow CO2 to enter and O2 to exit. Water then evaporates from the leaf, creating transpiration. 4.Describe one way in which plants can adapt to water supply or environmental factors.-Leaves with less surface area or fewer stomata will retain water easier for the plants survival
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  • Winter '15
  • Massey
  • Plants

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