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U10SG - Why is the hover fly the only insect that can get...

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Unit 10 - Insect and Plant Interaction Study Guide Unit Objectives: 1. Describe how plant and insect relationships evolved together. 2. Using examples, explain how insects can protect, and help propagate plants. 3. Describe the ways plants protect themselves from insects. 4. Describe an insect gall. 5. Describe how plant/insect interactions are similar to the Cold War. In the beginning What insects are thought to be the first pollinators? What is the difference between nectar and pollen and on which do insects feed? Which orders are the most common pollinators? Why do some plants put nectar deep within the flower? Why is it beneficial for a plant to attract specific pollinators? Mutualism Seed Dispersal : What part of the seed does the ant eat? How does this help the seed? Protection : What does the cecropia plant give to the ants? How is the plant benefited by having ants live inside it? Reproduction/pollination : Where is the pollen glued on to the butterfly? Which position must a butterfly assume in order to suck nectar out of the flower?
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