Loose Leaf For Integrated Principles Of Zoology
18th Edition
ISBN: 9781260411140
Author: Cleveland P Hickman Jr. Emeritus, Susan L. Keen, David J Eisenhour Professor PhD, Allan Larson, Helen I'Anson Associate Professor of Biology
Publisher: McGraw-Hill Education
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Chapter 38, Problem 11RQ
Define predation. How does the predator-prey relationship differ from the
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How does a defense mechanism (behavioural, cryptic colouration, protective colouration, mimicry) affect predation and competition?
a) Provide an example of a defense mechanism that you have not encountered in the course or in the online assignments. Include an image depicting the defence mechanism, describe the defence mechanism and cite your sources.
b) Hypothesize how this defence mechanism may have evolved over time due to pressure from predation and/or competition.
Read this quote from Charles Darwin (from Origin of Species). What is he describing?
"Thus, I can understand how a flower and a bee might slowly become, either
simultaneously or one after the other, modified and adapted to each other in the
most perfect manner, by the continued preservation of all the individuals which
presented slight deviations of structure mutually favorable to one another."
An interaction network.
A predator/prey cycle.
O Coevolution.
An obligate mutualism.
What is predation? explain and provide example.
Chapter 38 Solutions
Loose Leaf For Integrated Principles Of Zoology
Ch. 38 - The term ecology is derived from the Greek meaning...Ch. 38 - Prob. 2RQCh. 38 - Prob. 3RQCh. 38 - Define the niche concept. How does the realized...Ch. 38 - Populations of independently living (unitary)...Ch. 38 - Prob. 6RQCh. 38 - Contrast exponential and logistic (= sigmoid)...Ch. 38 - Growth of a population can be hindered by either...Ch. 38 - Herbivory is beneficial for the animal (+) but...Ch. 38 - Prob. 10RQ
Ch. 38 - Define predation. How does the predator-prey...Ch. 38 - Prob. 12RQCh. 38 - Prob. 13RQCh. 38 - What is a trophic level, and how does it relate to...Ch. 38 - Define productivity as the word is used in...Ch. 38 - Prob. 16RQCh. 38 - What conditions produce an inverted pyramid of...Ch. 38 - Prob. 18RQCh. 38 - Prob. 19RQCh. 38 - What do paleontological studies show about the...Ch. 38 - Prob. 1FFT
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- Interaction exhibited by the organisms named cat and rat is called; 1: mutualism 2: commensalism 3: predation 4: parasitism 5: competitionarrow_forwardWhy can invasive predators have such strong effectson native prey?arrow_forwardWhat is coevolution? Discuss in the context of predators and prey.arrow_forward
- Which of the following rows correctly describes the difference between predation and parasitism? Select one: a. Predation Parasitism The host species is killed to benefit the other species. The host species is not killed, but its life is barely sustained to benefit the other species. b. Predation Parasitism The host species is unharmed, and its life is sustained to benefit the other species. The host species killed or barely left alive to benefit the other species. c. Predation Parasitism The host species is not killed, but its life is barely sustained to benefit the other species. The host species is not killed, but its life is barely sustained to benefit the other species. d. Predation Parasitism The host species killed or barely left alive to benefit the other species. The host species is unharmed, and its life is sustained to benefit the other species.arrow_forwardWhat term is used to describe how members of different species strategize how, when, and where they will obtain resources to reduce competition? competitive reduction resource partitioning interspecies competition intraspecies competitionarrow_forwardIf a parasite’s life cycle involves multiple hosts, what might control the population dynamics of the parasite? Briefly discuss. What is mutualism? Look up some examples of relationships that have been identified as mutualisms and examine them critically. Are they in fact mutualistic?arrow_forward
- A niche is loosely defined as an organism's role in its environment, which can include factors such as feeding preference, nesting behaviors, mating behaviors, method of obtaining prey, and local habitats. Keeping Gause's law in mind, do some research on the California red-legged frog and the North Pacific tree frog (use wiki or another Google search). Create a chart comparing the two with respect to their niche or lifestyle that can explain how these two frogs can co-exist in the same ecosystem.arrow_forwardWhich statement about the classic competition experiments involving two Paramecium species is FALSE? The experiment involved interspecific competition. The experiment involved exploitation competition. Each species, when grown alone, exhibited logistic growth. When grown together, the species exhibited logistic growth, but each reached a lower carrying capacity than when it was grown alone.arrow_forwardResearchers have suggested that predators could actually increase the population density of a prey species heavily infested by a pathogenic parasite. Explain how predation could lead to population increases in the prey population.arrow_forward
- If the rate of some process is governed by the abundance of prey individuals, we say that it is prey-dependent. Give some examples of prey-dependent processes.arrow_forwardWhat is the Predator Release Hypothesis? Explain how it works. What is ONE principle or idea that we studied in this course that can be illustrated using it (other than predation). Explain how the predator release hypothesis fits into that idea.arrow_forwardThe bluestreak cleaner wrasse is a fish that inhabits coral reefs. These fish eat parasites off of larger fish. The larger fish benefit from increased health. In return, the wrasse receive nutrition and protection from the larger fish. What type of interaction is this? a) Predation b) Mutualism c) Parasitism d) Commensalismarrow_forward
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