Multiple Choice
How do plants primarily prevent excess water loss?
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37. Plant Sensation and Response
Plant Defenses
Back37. Plant Sensation and Response
Plant Defenses
- Multiple ChoicePlant hormonal regulation differs from animal hormonal regulation in that:28views
- Multiple ChoiceWhich of the following plant structures is not a defense against herbivory?308views
- Multiple ChoicePlants in the desert often exhibit which of the following adaptations to minimize water loss?4views
- Multiple ChoiceWhich of the following best describes the effect of water availability on plant growth?25views
- Multiple ChoiceWhich of the following plant structures is strengthened by a substance called lignin?248views
- Multiple ChoiceWhy are most bryophytes less than 10 cm tall?23views
- Multiple ChoiceWhich of the following is/are plant defenses against the herbivores that feed on them?725views
- Multiple ChoiceThe first line of defense against pathogens is __________.1140views
- Multiple ChoiceIn at least some species of plant, a leaf damaged by a caterpillar may __________.816views
- Textbook Question
Which of the following is a type of defense used by plants to deter herbivores?
a. Chemicals toxic to the herbivore
b. Chemicals that recruit other animals
c. Spines
d. a, b, and c
1014views - Textbook Question
Suppose that a mutant plant is unable to make methyl salicylate. Explain why it is not likely to survive in the wild.
471views - Textbook Question
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?
958views - Textbook QuestionImagine the following scenario: A plant biologist has developed a synthetic chemical that mimics the effects of a plant hormone. The chemical can be sprayed on apples before harvest to prevent flaking of the natural wax that is formed on the skin. This makes the apples shinier and gives them a deeper red color. What kinds of questions do you think should be answered before farmers start using this chemical on apples? How might the scientist go about finding answers to these questions?764views