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发布时间: 1970-01-01

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1最佳选择题 3分

AHierarchyofHormones Allofthecellsinaparticularpl

  • A. it is not known exactly what functions the hormones perform
  • B. each hormone has various effects on plants
  • C. none of the hormones can function without the others
  • D. each hormone has different effects on different kinds of plants
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本题解析: 暂无解析

2最佳选择题 3分

AHierarchyofHormones Allofthecellsinaparticularpl

  • A. To stimulate a particular plant cell to become part of a plant’s root system.
  • B. To activate enzymes that release specific chemical messengers from plant call walls.
  • C. To duplicate the gene complement in a particular plant cell.
  • D. To produce multiple effects on a particular subsystem of plant cells.
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本题解析: 暂无解析

3最佳选择题 3分

AHierarchyofHormones Allofthecellsinaparticularpl

  • A. way in which hormones are produced by plant
  • B. hierarchical nature of the functioning of plant hormones.
  • C. differences between the best-known plant hormones.
  • D. concept of pleiotropy as it is exhibited by plant hormones.
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4最佳选择题 3分

AHierarchyofHormones Allofthecellsinaparticularpl

  • A. Interacting with one another to produce different chemicals.
  • B. Pleasing specific chemical messengers from a plants cell walls.
  • C. Reoducing the hormones that cause plant cells to differentiate to perform different functions.
  • D. Influencing the development of a plant’s cells by controlling the expression of the cell’s genes.
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5最佳选择题 3分

AHierarchyofHormones Allofthecellsinaparticularpl

  • A. trace the passage of chemicals through the walls of cells.
  • B. pinpoint functions of other plant hormones.
  • C. artificially control specific aspects of the development of crops.
  • D. alter the complement of genes in the cells of plants.
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