Biology: The Unity and Diversity of Life (Looseleaf)
15th Edition
ISBN: 9781337408417
Author: STARR
Publisher: CENGAGE L
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Chapter 29, Problem 7SQ
Choose the statement that is true.
- a. All flowers are pollinated by bees.
- b. Apple trees are propagated by grafting because they are triploid.
- c. Carpels function to attract pollinators.
- d. A coleoptile protects the plumule of eudicot seedlings.
- e. The arrival of pollen on a receptive seed is called pollination.
- f. In plants, sperm cells are male gametes.
- g. Nutrients in fruits nourish new seedlings.
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Which of the following is an advantage of asexual reproduction? a. Cuttings taken from an adult plant show increased resistance to diseases. b. Grafted plants can more successfully endure drought. c. When cuttings or buds are taken from an adult plant or plant parts, the resulting plant will grow into an adult faster than a seedling. d. Asexual reproduction takes advantage of a more diverse gene pool.
Which of the following is True?a. Ethylene stimulates abscission layers to form.b. Abscisic acid causes abscission layers to form.c. Ethylene is sometimes sprayed on flowers to keep them fresh.d. Abscisic acid stimulates seed germination.
Under which of the following conditions would pollen from an S2S5 plant successfully pollinate an S1S5 flower?
a. Using pollen from a carpelate flower to fertilize a staminate flower would be successful.
b. If the plants used gametophytic self-incompatibility, half of the pollen would be successful.
c. If the plants used sporophytic self-incompatibility, half of the pollen would be successful.
d. Pollen from an S2S5 plant can never pollinate an S1S5 flower.
Chapter 29 Solutions
Biology: The Unity and Diversity of Life (Looseleaf)
Ch. 29 - Whos the Pollinator? Massonia depressa is a...Ch. 29 - Whos the Pollinator? Massonia depressa is a...Ch. 29 - Whos the Pollinator? Massonia depressa is a...Ch. 29 - Prob. 4DAACh. 29 - The arrival of pollen grains on a receptive stigma...Ch. 29 - An animal pollinator may be rewarded by _______...Ch. 29 - Prob. 3SQCh. 29 - In flowrers, the structures that produce male...Ch. 29 - Meiosis of cells in pollen sacs forms haploid...Ch. 29 - Prob. 6SQ
Ch. 29 - Choose the statement that is true. a. All flowers...Ch. 29 - The seed coat forms from the __________. a....Ch. 29 - Seeds are mature ______; fruits are mature...Ch. 29 - Jessica is preparing a plate of fruits for a party...Ch. 29 - Cotyledons develop as pan of ________. a. carpels...Ch. 29 - Exposure to _______ can trigger seed germination....Ch. 29 - Prob. 13SQCh. 29 - Match the terms with the most suitable...Ch. 29 - Prob. 15SQCh. 29 - Prob. 1CTCh. 29 - All but one species of large birds native to New...Ch. 29 - Is the seedling shown on the right a monocot or...
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- In flowers, the structures that produce male gametophytes are called _______ ;the strcutures that produce female gametophytes are called _______ . a. pollen grains; flowers c. anthers; stigma b. stamen; carpels d. megaspores; microsporesarrow_forwardties of the brain and spinal cord B. Match the hormones that are supposed to be added to a plant in order to achieve the following results: a. Auxin b. Gibberellin c. Cytokinin d. Abscisic Acid e. Ethylene 19. unpollinated flowers are treated with this hormone so ovary enlarges and becomes a seedless fruit 20. substitute for temperature or light cues in plant seeds to get them to germinate 21. black spots on banana skin are spots where these are produced inducing ripening 22. seeds/bulbs stay dormant during winter to ensure survival of the plant when it germinates 23. most grape growers spray this in vines to increase length of branches between fruit clusters for more air spaces among fruits to lower fungal infections 24. sprayed on cut leaves and stems so they will remain green longer while unsprayed leaves will tum yellow and diearrow_forwardWhat is the relationship between pollination and fertilization in flowering plants? Select one: a. Fertilization precedes pollinations. b. If fertilization occurs, pollination would be unnecessary. c. Pollination brings gametophytes together so that fertilization can occur. d. Pollination easily occurs between plants of different species.arrow_forward
- Which of the following structures in a flower is not directly involved in reproduction? a. the style b. the stamen c. the sepal d. the antherarrow_forwardC. For numbers 21 to 24, match the parts of the flower with what they will develop into after fertilization. A. Endosperm of the seed B. Plant embryo C. Fleshy fruit that can be D. Whole seed E. Seed coat eaten 21. Ovule 23. Polar Nuclei 22. Ovary 24. Eggarrow_forwardC. two embryos from two sperm cells and two eggs. D. one embryo involving one sperm cell and of endosperm involving a s cell. Insect pollinated plants differ from wind pollinated plants in having A. no petals and light pollens B. small petals and heavy-pollens C. nectar and sticky pollens D. coloured petals and large pollens 11. Justify an eudicots plant bears flowers but never produces fruits and see A. The plant is monoecious. B. The plant is dioecious and bears only pistillate flowers. C. The plant is dioecious and bears only staminate flowers. D. The plant is dioecious and bears both pistillate and staminate flowers. 12. Identify the false statement of the apoplastic pathway in water movemen A. It passes through intercellular spaces and cell walls. B. The system of adjacent cell walls is continuous all through the plant. C. It crosses the cell membrane. D. It does not continue to move at the Casparian strips of endodermis. 13. 14. Select the hormone that promotes cell division and…arrow_forward
- A seed protects thea. embryo. b. ovule. c. ovary.d. pollen grain.arrow_forwardPresence of all of the following factors promotes dormancy of seeds, except a.Phenolics b.Impermeable seed coat c.Immature embryo d.Gibberellinsarrow_forwardMeiosis occurs within the: A. Endosperm B. Petal C. Ovary D. Ovule E. Stigmaarrow_forward
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