agriscience, unit 20 worksheet. ` 1. the process of increasing the number of species of a given...
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Agriscience, Unit 20 Worksheet
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`1. The process of increasing the number of species of a given plant is called:
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2. The propagation method where a stem is girdled, treated with a rooting hormone , and surrounded with damp sphagnum moss and plastic until new roots appear is called:
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3. A substance applied to stem cuttings to speed up the development of roots is:
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4. The male part of the flower is called the:
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5. The tendency of crossbred plants to be stronger and survive better than purebred plants is called:
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6. Crossbreeding two species of plants in the same genus with each another produces a:
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7. An exact duplication of a plant by asexual propagation is called a:
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8. When a seed coat is damaged to encourage germination, the process is called
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9. A disadvantage of plant tissue culture as a means of asexual propagation is:
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10. The part of the plant that is responsible for development of seed is the:
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11. A seed that is alive and capable of germination is said to be:
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12. Sexual reproduction in plants results in the production of:
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13. Which plants tend to be stronger and survive better than open-pollinated plants?
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14. Which type of stem cutting method is used when stock plant material is limited and the stems have alternate leaves?
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15. A cutting that is usually made from a large – leaf plant with the veins split is called:
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16. Which asexually propagation method is used to join parts of from two different plants to create a new plant?
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17. The propagation method where a plant is separated into smaller parts is:
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18. Tissue culture may be used for:
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19. What are the advantages of asexual propagation?
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20. All seed plant propagation starts with:
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21. The purpose of petals in flowers is to attract:
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22. Food for the seed is stored in the:
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23. The three parts of a seed are:
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24. The female part of a flower is called the:
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25. Pollen is produced in the stamen by the:
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26. The male sex cells in a plant are found in:
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27. The purpose of a seed coat is to:
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28. Which propagation method uses very small actively growing plant parts and growing medium using test tubes under sterile conditions to produce thousands of plants:
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29. The most common type of grafting is:
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30. When you use a vegetative part or parts of a plant for reproducing a new plant it is called:
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31. A method of asexual propagation where the stem is encouraged to root while still attached to the parent plant is called:
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32. What is the only way to obtain new varieties and increase hybrid vigor of plants?
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33. All of the flower petals together are called the:
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34. What part of the flower supports the anther?
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35. Sexual reproduction occurs through:
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36. What is often less expensive and the quicker method to reproduce plants
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37. What vegetative plant parts can be used of a the parent plant to regenerate itself asexual?