Campbell Biology in Focus
3rd Edition
ISBN: 9780134710679
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Rebecca Orr
Publisher: PEARSON
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Chapter 31, Problem 5TYU
Summary Introduction
Introduction:
The stimulus that plants mostly take from the environment is photoperiod. Night length is responsible for controlling the flowering and other responses to photoperiod.
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If a long-day plant has a critical night length of 9 hours, which 24-hour cycle would prevent flowering? (A) 16 hours light/8 hours dark (B) 14 hours light/10 hours dark (C) 4 hours light/8 hours dark/4 hours light/8 hours dark (D) 8 hours light/8 hours dark/light flash/8 hours dark
A decrease in the level of which hormone releases seeds from dormancy? a. abscisic acid b. cytokinin c. ethylene d. gibberellic acid
New plants grow from pieces or cuttings of parent plants
Choose the right answer:
a. Regeneration
b. Mitosis
c. Budding
d. Vegetative Propagation
Chapter 31 Solutions
Campbell Biology in Focus
Ch. 31.1 - Prob. 1CCCh. 31.1 - WHAT IF? If a plant has the double mutation ctr...Ch. 31.1 - Prob. 3CCCh. 31.2 - If an enzyme in field-grown soybean leaves is most...Ch. 31.2 - WHAT IF? If a plant flowers in a controlled...Ch. 31.2 - MAKE CONNECTIONS Plants detect the quality of...Ch. 31.3 - Prob. 1CCCh. 31.3 - Prob. 2CCCh. 31.3 - Prob. 3CCCh. 31.4 - Prob. 1CC
Ch. 31.4 - Chewing insects mechanically damage plants and...Ch. 31.4 - Prob. 3CCCh. 31 - The hormone that helps plants respond to drought...Ch. 31 - Prob. 2TYUCh. 31 - Prob. 3TYUCh. 31 - Prob. 4TYUCh. 31 - Prob. 5TYUCh. 31 - Prob. 6TYUCh. 31 - DRAW IT Indicate the response of Arabidopsis to...Ch. 31 - Prob. 8TYUCh. 31 - FOCUS ON EVOLUTION As a general rule,...Ch. 31 - FOCUS ON INTERACTIONS In a short essay (100-150...Ch. 31 - Prob. 11TYU
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Plant development is influenced by: A. quality of light only B. quality and quantity of light C. quality and duration of light D. quality, quantity and duration of lightarrow_forwardWhich is common to the life cycles of both flowering and non-flowering plants? a) produce fruit b) stay dormant c) pollination d) producing conesarrow_forwardAuxin causes the bending of shoot toward light by?A. Causing cells to shrink on the dark side of the shootB. Causing cells to shrink on the lighted side of the shootC. Inhibiting growth on the dark side of the shootD. Stimulating growth on the lighted side of the shootE. Stimulating growth on the dark side of the shootarrow_forward
- Which is an example of Phototropism? A) roots of a plant following water B) plant bending toward the light C) roots growing into the soil D) a venus flytrap capturing a flyarrow_forwardMake a coclusion about the Effect of Light to seed germination and seed growth.arrow_forwardElevated levels of this hormone promote seed dormancy? Select one: a. gibberellin b. abscisic acid c. ethylene d. salicyclic acid e. auxinarrow_forward
- Stomata (a) help prevent desiccation of plant tissues (b) transport water and minerals through plant tissues (c) allow gas exchange for photosynthesis (d) strengthen cell walls (e) produce male gametesarrow_forwardWhich sentence correctly describes how a plant reproduces? A. Pollen made by the petals goes to the sepal. B. The pistil receives petals from the sepal. C. Pollen from the stamen goes to the pistil. D. The stamen makes pollen that goes to the petals.arrow_forwardSpermology is the study of: A) Seed B) Leaf C) Fruit D) Pollen grainarrow_forward
- A long day plant is given a long night, and is interrupted by a light pulse in the middle of the night. Which quality of the light pulse will most likely prevent flowering? Select one: a. UV light b. green light c. red light d. far-red lightarrow_forwardMake a conclusion about Monggo seeds germination. Its process including imbibition, respiration, effect of light on seed germination, mobilization of reserves during seed germination, and role of growth regulators and development of the embryo axis into a seedling.arrow_forwardWhich option exemplifies thigmotropism? a shoot on its side turning to grow upwards vines bending around a pole as they grow up it roots growing down into the soil leaves bend toward the sunlight seedlings bending towards the lightarrow_forward
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