anonymous
  • anonymous
Scientists studying the transport of sugars in plants found it difficult to conduct experiments that did not damage the plants they were studying. Some of them decided to use some insects they knew fed on plants. The insects they chose were aphids, which have mouthparts that they insert into plants and use to suck out nutrients. Many of these aphids also release excess sugars from the anal end of their digestive tracts. These substances are called honeydew because they are released as sugary droplets. The scientists conducted the following experiments:
Biology
schrodinger
  • schrodinger
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anonymous
  • anonymous
Scientists studying the transport of sugars in plants found it difficult to conduct experiments that did not damage the plants they were studying. Some of them decided to use some insects they knew fed on plants. The insects they chose were aphids, which have mouthparts that they insert into plants and use to suck out nutrients. Many of these aphids also release excess sugars from the anal end of their digestive tracts. These substances are called honeydew because they are released as sugary droplets. The scientists conducted the following experiments: (1) They measured the rate at which honeydew was released from aphids feeding on cucumber plants. The average rate was two drops per hour. (2) They froze some aphids and the plant parts to which the aphids were attached. They then examined cross sections of the plant parts using an electron microscope. They found that the tips of the aphids’ mouthparts were in individual cells in the phloem tissue. (3) They anesthetized aphids feeding on plants and then cut away the aphids, leaving the mouthparts in place. They noted that the honeydew continued to be released through the mouthparts at a rate of two drops per hour. They also analyzed the honeydew and found that it had the same chemical composition as the sugars transported in the plants. Which of the following statements is not supported by the data obtained in these experiments?
anonymous
  • anonymous

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anonymous
  • anonymous
i got it thanks for trying tho
anonymous
  • anonymous
hey
anonymous
  • anonymous
im thinking

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