PEARSON ETEXT FOR CAMPBELL BIOLOGY
12th Edition
ISBN: 9780135988046
Author: Urry
Publisher: PEARSON
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Chapter 52, Problem 9TYU
Summary Introduction
To formulate: A hypothesis to explain the observed pattern that is obtained from the research.
Introduction: The distribution of species is the consequence of the evolutionary history as well as the ecological factors. For example, Kangaroos are located only in Australia. In various cases, both the abiotic and the biotic factors affect the species distribution.
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Interpret the following graphs:
In the graphs, the number of days are 18.. 1 day is equal to 60 sec. For the first graph, days are taken on x-axis. The mean foraging times are taken on y-axis. For the 2nd graph, percentage of prey caught during first half of winter(1-6days) were taken on x-axis and percentage of prey caught during 2nd half of winter(7-12days) were taken on y-axis.
Consider a trophiccascade with 4 levels: 1) predatory fish that consume planktivorous fish, 2) planktivorous fish that consume zooplankton,3) herbivorous zoplankton that consume phytoplankton, and 4) phytoplankton.
True or False: A reduction in predatory fish will increase the level of phytoplankton.
True
False
Red-billed oxpeckers feed almost exclusively on what they can collect from the skin of large African mammals. This includes ticks and other ectoparasites, but also dead skin and blood of the mammal. The attached image shows a red-billed oxpecker sitting on the back of a warthog with a tick in its bill. A recent study found that the depletion of African mammals due to habitat loss and hunting leads to declines in oxpeckers.
Researchers were interested in whether the nature of the interaction between African mammals and oxpeckers was context-dependent. They compared the effect of removal of oxpeckers in two areas in which the number of ticks on the mammals differed.
Given the data described in the introduction to this section, what effect do African mammals have on oxpeckers
a) Positive
b) negative
c) neutral
Chapter 52 Solutions
PEARSON ETEXT FOR CAMPBELL BIOLOGY
Ch. 52.1 - Explain how the sun's unequal heating of Earth's...Ch. 52.1 - What are some of the differences in microclimate...Ch. 52.1 - WHAT IF? Changes in Earth's climate at the end of...Ch. 52.1 - MAKE CONNECTIONS Focusing just on the effects of...Ch. 52.2 - Based on the climograph in Figure 52.10, what...Ch. 52.2 - Using Figure 52.12, identify the natural biome in...Ch. 52.2 - WHAT IF? If global warming increases average...Ch. 52.3 - Why are phytoplankton, and not benthic algae or...Ch. 52.3 - Prob. 2CCCh. 52.3 - MAKE CONNECTIONS As noted in Figure 52.15, the...
Ch. 52.4 - Give examples of human actions that could expand a...Ch. 52.4 - WHAT IF? You suspect that deer are restricting...Ch. 52.4 - MAKE CONNECTIONS Hawaiian silverswords under-went...Ch. 52.5 - Describe a scenario showing how ecological change...Ch. 52.5 - MAKE CONNECTIONS Commercial fisheries target...Ch. 52 - Suppose global air circulation suddenly reversed,...Ch. 52 - Prob. 52.2CRCh. 52 - Prob. 52.3CRCh. 52 - Interactions between organisms and the environment...Ch. 52 - Suppose humans introduced a species to a new...Ch. 52 - Level 1: Knowledge/Comprehension 1. Which of the...Ch. 52 - Which lake zone would be absent in a very shallow...Ch. 52 - Which of the following is characteristic of most...Ch. 52 - Prob. 4TYUCh. 52 - Prob. 5TYUCh. 52 - When climbing a mountain, we can observe...Ch. 52 - Prob. 7TYUCh. 52 - Prob. 8TYUCh. 52 - Prob. 9TYUCh. 52 - EVOLUTION CONNECTION Discuss how the distribution...Ch. 52 - SCIENTIFIC INQUIRY Jens Clausen and colleagues, at...Ch. 52 - WRITE ABOUT A THEME: INTERACTIONS Global warming...Ch. 52 - SYNTHESIZE YOUR KNOWLEDGE If you were to hike up...
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