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Xylem is indicated by the letter _____. (Activity 35A) 
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| A |
| B |
| C |
| D |
| E |
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The letter A indicates the _____. (Activity 35A) 
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| xylem |
| stele |
| endodermis |
| cortex |
| epidermis |
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The letter A indicates the _____. (Activity 35A) 
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| xylem |
| vascular bundle |
| phloem |
| cortex |
| pith |
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Pith is indicated by the letter _____. (Activity 35A) 
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| A |
| B |
| C |
| D |
| E |
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Ground tissue is indicated by the letter _____. (Activity 35A) 
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| A |
| B |
| C |
| D |
| E |
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In leaves, chloroplasts are found in _____. (Activity 35A)
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| xylem |
| cuticle |
| phloem |
| guard cells |
| palisade parenchyma |
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The region surrounded by guard cells is indicated by the letter _____. (Activity 35A) 
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| A |
| B |
| C |
| D |
| E |
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Click on the diagram to start the animation.
Primary growth has occurred in the region(s) indicated by the letter(s) _____. (Activity 35B)
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| A |
| B |
| A and B |
| A and D |
| B and C |
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Click on the diagram to start the animation.
Secondary growth has occurred in the region(s) indicated by the letter(s) _____. (Activity 35B)
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| A |
| B |
| A and C |
| A and D |
| B and D |
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Secondary growth NEVER occurs in _____. (Activity 35B)
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| stems |
| roots |
| leaves |
| stems and leaves |
| roots and leaves |
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_____ provides cells for secondary growth. (Activity 35B)
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| Apical meristem |
| Secondary xylem |
| Vascular cambium |
| Secondary phloem |
| The root |
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Click on the diagram to begin the animation.
The letter A indicates _____. (Activity 35A)
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| vascular cambium |
| lateral meristem |
| apical meristem |
| secondary xylem |
| cork cambium |
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Vascular cambium forms wood toward the stem's _____ and secondary phloem toward the stem's _____. (Activity 35B)
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| center ... center |
| surface ... surface |
| surface ... center |
| center ... surface |
| top ... bottom |
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What is the function of cork? (Activity 35B)
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| providing a site for photosynthesis |
| providing cells for secondary growth |
| insulation and waterproofing |
| providing cells for primary growth |
| regulating the opening and closing of stomata |
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How is the supply of vascular cambium maintained? (Activity 35B)
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| by the differentiation of secondary xylem |
| by the differentiation of secondary phloem |
| by the differentiation of cork |
| by the division of its cells |
| by the differentiation of apical meristem |
