CAMPBELL BIOLOGY:CONCEPTS... >CUSTOM<
18th Edition
ISBN: 9781323753149
Author: SIMON
Publisher: PEARSON C
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Chapter 33, Problem 19TYK
A plant biologist observed a peculiar pattern when a tropical shrub was attacked by caterpillars. After a caterpillar ate a leaf, it would skip over nearby leaves and attack a leaf some distance away. Simply removing a leaf did not trigger the same change nearby. The biologist suspected that a damaged leaf sent out a chemical that signaled other leaves. How could this hypothesis be tested?
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A plant biologist observed a peculiar pattern when a tropical shrub was attacked by caterpillars. After a caterpillar ate a leaf, it would skip over nearby leaves and attack a leaf some distance away. Simply removing a leaf did not deter caterpillars from eating nearby leaves. The biologist suspected that an insect-damaged leaf sent out a chemical that signaled nearby leaves. How could the researcher test this hypothesis?
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Chapter 33 Solutions
CAMPBELL BIOLOGY:CONCEPTS... >CUSTOM<
Ch. 33 - Test your knowledge of the five major classes of...Ch. 33 - Prob. 2TYKCh. 33 - Prob. 3TYKCh. 33 - In autumn, the amount of _____ increases and the...Ch. 33 - Prob. 5TYKCh. 33 - Prob. 6TYKCh. 33 - Which of the following is a type of defense used...Ch. 33 - Prob. 8TYKCh. 33 - Prob. 9TYKCh. 33 - Prob. 10TYK
Ch. 33 - Prob. 11TYKCh. 33 - Prob. 12TYKCh. 33 - Prob. 13TYKCh. 33 - Prob. 14TYKCh. 33 - A certain short-day plant flowers only when days...Ch. 33 - If apples are to be stored for long periods, it is...Ch. 33 - Prob. 17TYKCh. 33 - A plant nursery manager tells the new night...Ch. 33 - A plant biologist observed a peculiar pattern when...Ch. 33 - Imagine the following scenario: A plant biologist...Ch. 33 - Prob. 21TYK
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- Experiments show that plants can communicate with each other. Consider a plant put under drought conditions which is connected via the roots to a neighboring plant. The drought plantbsends messages through the roots to its neighbor. Even through the neighbor plant has plenty of water, it will respond as if in drought conditions too. In what way will the plant respond?arrow_forwardIn a forest more grass grew as a result of more rain. How will grass affect the deer that live in the forest?arrow_forwardWhich of the following plant structures is not a defense against herbivory? a. thorns b. spines c. nectar d. alkaloidsarrow_forward
- Which signaling molecule triggers the release of volatile substances that attract parasitic wasps to plant-eating caterpillars?(a) phytochrome (b) jasmonic acid (c) auxin (d) methyl salicylate (e)gibberellinarrow_forwardCommercials in Tv often use food and sex as selling points. Explain how flowers may use the same two points to "sell" their pollen to animalsarrow_forwardIs it true that plants are able to sense environmental information that is both physical and chemical?arrow_forward
- Chlorophyll, a green pigment found in plants and not humans, provides energy to the plant by absorbing light. The graph below shows what wavelengths of visible light that plants absorb. Explain what happens to the green light that hits a leaf compared with the red light.arrow_forwardMany plants are adapted to survive harsh conditions . Describe two modifications found in the stems of cacti that improve desert survival .arrow_forwardMany plants mimic other plants or other animals in order to attract pollinators. a) Describe one example of plants mimicking either other plants or other animals in order to attract pollinators. b) Why might these “cheating” strategies have evolved rather than developing “truthful” signals to attract a pollinator?arrow_forward
- After a plant perceives a stimulus and before it can respond, there is another step called _____________ ___________. What happens in this step?arrow_forwardWhich is NOT an example of plants demonstrating the characteristics of life? A plant has stimuli that cause it to grow towards the sunlight. Plants are forced to make adaptations depending on its environment Plants reproduces through sexual and asexual The leaves on a plant move in reaction to the windarrow_forwardA small frog lives in a pond covered with a species of aquatic plant that attracts insects due to its color. The small frogs depend on the insects for food. This represents a ________________ relationship between the frog and the plant species.arrow_forward
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