Biology: The Unity and Diversity of Life (MindTap Course List)
14th Edition
ISBN: 9781305073951
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 30, Problem 10SQ
Summary Introduction
To match: The response with its main trigger.
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Phytochromesa. primarily respond to ultraviolet light.b. exist in two different stable forms.c. have the same effects in all flowering plants.d. have an active form called Pfr.
Exposure to______ can trigger seed germination. a. light c. smoke b. cold d. all can be triggers
Growth of pollen tube towards embryo sac is
(a) chemotropic
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(c) geotropic
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Chapter 30 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 30 - Prob. 1SQCh. 30 - _______ is the hormone in most rooting compounds....Ch. 30 - Which of the following statements is false? a....Ch. 30 - Prob. 4SQCh. 30 - Ethylene differs from other hormones in that it...Ch. 30 - Heliotropism may be related to ________ a. photo...Ch. 30 - Prob. 7SQCh. 30 - Prob. 8SQCh. 30 - Volatile Secondary Metabolites in Plant Stress...Ch. 30 - Volatile Secondary Metabolites in Plant Stress...
Ch. 30 - Volatile Secondary Metabolites in Plant Stress...Ch. 30 - Volatile Secondary Metabolites in Plant Stress...Ch. 30 - Stomata dose in response to ________ a. ABA b....Ch. 30 - Prob. 10SQCh. 30 - Match the hormonewith the characteristic. _____...Ch. 30 - Match the hormone with the observation. ____...Ch. 30 - Professional gardeners often soak seeds in...Ch. 30 - Photosynthesis sustains plant growth, and inputs...Ch. 30 - Prob. 3CTCh. 30 - Cattle in industrial dairy farms are typically...Ch. 30 - The oat coleoptiles on the left have been...
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- Pollen grains develop in which structure? a. the anther b. the stigma c. the filament d. the carpelarrow_forward1. A short-day plant flowers only when exposed to light for less than 12 hours long. Which of the following would cause the plant to flower a 12-hour day and 12-hour night with a flash of red light b. an 8-hour day and 16-hour night with a flash of white light after 8 hours c. 9-hour night and 15-hour day with 1 minute of darkness after 7 hours d. 13-hour night and 11-hour day with 1 minute of darkness after 6 hours e. 24 hours of continuous lightarrow_forwardPlant tissue culture takes advantage ofa. phototropism.b. gravitropism.c. asexual reproduction from tubers.d. totipotency.arrow_forward
- A plant mutant that shows normal gravitropic bending butdoes not store starch in its plastids would require a reevaluationof the role of _____________ in gravitropism.(A) auxin(B) calcium(C) statoliths(D) differential growtharrow_forwardThe integuments of an ovule will develop into the a. embryo. b. endosperm. c. fruit. d. seed coat.arrow_forwardFlower shape and color can be linked to the process ofa. pollination.b. photosynthesis.c. germination.d. secondary growtharrow_forward
- Fruitsa. nourish embryo development.b. help with seed dispersal.c. signal gametophyte maturity.d. attract pollinators.e. stay where they are produced.arrow_forwardPhotoperiodism, when a plant responds to: A. In order to flower, long day plants need: B. In order to flower, short day planys need:arrow_forwardPollen grains in plants are produced in: A. roots B. leaves C. flower D. stemarrow_forward
- A yellow dust appears on the fingers, whenever we touch the middle of a flower. These tiny yellow grains are one of the most precious substances in nature because they contain the secret of plant life. What is this dust called? A. Pollen B. Sperm C. Spore D. Sporocystarrow_forwardYou’ve just bought a house with a great view of the mountains, but you have a neighbor who planted a bunch of trees that are now blocking your view. In an attempt to ultimately remove the trees and remain unlinked to the deed, you begin training several porcupines to enter the yard under the cover of night and perform a stealth operation. In order to most effectively kill the trees, you should train the porcupines to completely remove a. the vascular cambium. b. the cork. c. the cork cambium. d. the primary phloem.arrow_forwardThe main photoreceptor that triggers phototropism is a ________. a. phytochrome b. cryptochrome c. phototropin d. carotenoidarrow_forward
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