Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
Publisher: PEARSON
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Chapter 40.3, Problem 2CC
Flowers differ in how much sunlight they absorb. Why might this matter to a hummingbird seeking nectar on a cool morning?
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Which hormone(s) is/are responsible for the ability of sunflowers to turn their flowers to track the sun throughout the day? Explain how these hormones work.
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Light is often the most important environmental factor for inducing a plant to flower, but it is not the intensity of light. What it the important aspect?
Chapter 40 Solutions
Campbell Biology
Ch. 40.1 - What properties do all types of epithelia share?Ch. 40.1 - VISUAL SKILLS Consider the idealized animal in...Ch. 40.1 - WHAT IF? Suppose you are standing at the edge of...Ch. 40.2 - MAKE CONNECTIONS How does negative feedback in...Ch. 40.2 - If you were deciding where to put the thermostat...Ch. 40.2 - Prob. 3CCCh. 40.3 - Prob. 1CCCh. 40.3 - Flowers differ in how much sunlight they absorb....Ch. 40.3 - Prob. 3CCCh. 40.4 - If a mouse and a small lizard of the same mass...
Ch. 40.4 - Prob. 2CCCh. 40.4 - Prob. 3CCCh. 40 - Prob. 40.1CRCh. 40 - Is it accurate to define homeostasis as a constant...Ch. 40 - Given that humans thermoregulate, explain why your...Ch. 40 - Why do small animals breathe more rapidly than...Ch. 40 - Level 1: Knowledge/Comprehension 1. The body...Ch. 40 - Prob. 2TYUCh. 40 - Consider the energy budgets for a human, an...Ch. 40 - Prob. 4TYUCh. 40 - Prob. 5TYUCh. 40 - Prob. 6TYUCh. 40 - Prob. 7TYUCh. 40 - Prob. 8TYUCh. 40 - EVOLUTION CONNECTION In 1847, the German biologist...Ch. 40 - SCIENTIFIC INQUIRY Eastern tent caterpillars...Ch. 40 - SCIENCE. TECHNOLOGY. AND SOCIETY Medical...Ch. 40 - WRITE ABOUT A THEME: ENERGY AND MATTER In a short...Ch. 40 - 13. SYNTHESIZE YOUR KNOWLEDGE These macaques...
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- Owners and managers of plant nurseries have to plan lighting schedules for a long-day plant that will flower in February. What lighting periods will be most effective? What color of light should be chosen?arrow_forwardA long-day plant will flower if Select one: O the duration of continuous light is less than a critical length. O the duration of continuous light exceeds a critical length. O the duration of continuous darkness is less than a critical length O it is kept in continuous far-red light. O the duration of continuous darkness exceeds a critical length.arrow_forwardWe know that short-day plants do not really need short days, but actually long nights. Describe the type of treatment that proves this. Is some kind of light given during the night or some period of darkness given during the day?arrow_forward
- Submerged plants receive lesser illumination as compared to exposed floating plants in a lake. Give reasons.arrow_forwardInhibiting the uptake of IAA (the IAA anion) into cells will have a smaller effect on gravitropic and phototropic responses than inhibiting the activity of the plant's PIN proteins. True Falsearrow_forwardWhy is it important for bees to attract bright colored flowersarrow_forward
- Will a long-day plant (LDP) bear flowers after it was subjected to nights interrupted by flashing red light?arrow_forwardPlease help this is hw and I want to know why I'm wrong Why do many plants use pathways that detect light to regulate their flowering? Selected Answer: This allows plants to link flowering to temperature, which corresponds to the season when conditions are optimal Answers: This allows plants to link flowering to day length, which corresponds to the season when conditions are optimal Flower petals carry out high levels of photosynthesis and require high light conditions This allows plants to link flowering to temperature, which corresponds to the season when conditions are optimal A minimum amount of light is always necessary for floweringarrow_forwardThis plant is referred to as This plant is referred to as : Venus flytrap : butterwort : sundew : bladderwortarrow_forward
- Using what you know about plant physiology, explain why the light compensation point is lower in shade leaves compared to sun leaves.arrow_forwardRipe fruit has a high-carbohydrate content and tastes sweet. In contrast, grain, which also has a high-carbohydrate content, does not elicit a sweet sensation when consumed. Suggest a reason for this disparity from the plant’s point of view.arrow_forwardTo determine: Many plants have no flowers at all comparing to stinking corpse lily and its relatives, determine what these flowerless plants are like.arrow_forward
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