Which of the following are examples of indirect chemical defenses? (Select all that apply). Extrafloral nectar Toxins Trichomes Compounds that make the plant taste bad Volatile organic compounds (VOCs)
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- Plants have systemic defense mechanisms ( those that are not normally active but can be induced when the plant is under attack) describe an example of one systemic defense, including the processes, structures and/or molecules involved.Plants have systemic defense mechanisms (i.e., those that are not normally active but can be induced when the plant is under attack). Briefly describe an example of one systemic defense, including the processes, structures and/or molecules involved.Which of the following is most likely NOT an example of a plant defense to herbivory? Lignin in the tissues Urushiol production (e.g. in poison ivy) Coconut husk
- Which of the following is the function of cytokinin? A. activation of defense response from biotrophic and hemi-biotrophic pathogens B. structurally related to animal steroid hormones for growth and development C. long distance (root-to-shoot) signals for nitrogen assimilation D. defense from necrotrophic pathogens and herbivore insectsSystemic acquired resistance______ . a. occurs in response to pathogen detection b. causes the release of volatile chemicals c. is a hypersensitive response to pathogens d. defends the plant against herbivory e. does not involve hormonesMoths resting on the trunks of trees often resemble the tree bark such that potential predators do not perceive them as prey. This is an example of: an induced defense. aposematic coloration. crypsis. silencing.
- Describe one example of a plant chemical defense mechanism.Classify the plants based on the physical appearance of their defense structures. Classify them if they have the following ( If they have put description in each physical apperance, if they don't have put also some description each about it).a. with spinesb. with thornsc. with stinging trichomesd. with cutin or waxy leaves Plants to classify: stems of Euphorbia roses bunny ears cactus century plant makahiya kalamansi star apple leaves stinging nettle plantWhich of the following best describes evidence of a hypersensitive response? Select one: a. The bending of the coleoptile towards light. b. The growth of roots down and shoots up. c. When cells around an infection site die, depriving the pathogen of nutrients and preventing it from spreading. d. When plants elongate in response to being shaded. e. When stomata close despite plenty of CO 2 and water.
