Campbell Biology in Focus
3rd Edition
ISBN: 9780134710679
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Rebecca Orr
Publisher: PEARSON
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Textbook Question
Chapter 40, Problem 6TYU
INTERPRET THE DATA After examining Figure 40.13, you decide to study feeding relationships among sea otters, sea urchins, and kelp. You know that sea otters prey on sea urchins and that urchins eat kelp. At four coastal sites, you measure kelp abundance. Then you spend one day at each site and mark whether otters are present or absent every 5 minutes during the day. Graph kelp abundance (on the y-axis) versus otter density (on the x-axis), using the data below. Then formulate a hypothesis to explain the pattern you observed.
| Site | Otter Density (# sightings per day) |
Kelp Abundance (% cover) |
| 1 | 98 | 75 |
| 2 | 18 | 15 |
| 3 | 85 | 60 |
| 4 | 36 | 25 |
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Based on the food chain shown below, how can unregulated collection of shark fins used in shark fin soup cause the collapse of a coral reef ecosystem? To answer this question, continue the trend in abundance of each species indicated in the graph provided and explain your predicted trends. (PLS ANNOTATE THE GRAPH AS WELL)
Exam the graphing show the abundance
index of 3 species in this system. Which of
the following is true?
OTTER
O when kelp abundance is high urchin
and otter abundace is also high
when otter abundance is low kelp
abundance is high
URCHIN
O when urchin abundance is low kelp
and otter abundace is also low
KELP
1930 1940 1950 1960 1970 1980 1990 2000 2010 2016
O when urchin abundance is high kelp
Year
and otter abundace is low
INCLUDES HISTORICAL DATA
Abundance Index
Based on the food chain shown below, how can unregulated collection of shark fins used in shark fin soup cause the collapse of a coral reef ecosystem? To answer this question, continue the trend in abundance of each species indicated in the graph provided and explain your predicted trends.
Chapter 40 Solutions
Campbell Biology in Focus
Ch. 40.1 - Explain how the suns unequal heating of Earths...Ch. 40.1 - Prob. 2CCCh. 40.1 - WHAT IF? If global warming increases average...Ch. 40.2 - Why are phytoplankton and not benthic algae or...Ch. 40.2 - Prob. 2CCCh. 40.2 - MAKE CONNECTIONS The addition of nutrients to a...Ch. 40.3 - Give examples of human actions that could expand a...Ch. 40.3 - WHAT IF? You suspect that deer are restricting the...Ch. 40.4 - DRAW IT Each female of a particular fish species...Ch. 40.4 - Imagine that you are constructing a life table for...
Ch. 40.4 - Prob. 3CCCh. 40.5 - Explain why a constant per capita rate of growth...Ch. 40.5 - Explain why a population that fits the logistic...Ch. 40.5 - Prob. 3CCCh. 40.6 - Prob. 1CCCh. 40.6 - WHAT IF? Mice that experience stress such as a...Ch. 40.6 - Prob. 3CCCh. 40 - Which of the following biomes is correctly paired...Ch. 40 - A populations carrying capacity A. may change as...Ch. 40 - When climbing a mountain, we can observe...Ch. 40 - According to the logistic growth equation...Ch. 40 - WHAT IF? If the direction of Earths rotation...Ch. 40 - INTERPRET THE DATA After examining Figure 40.13,...Ch. 40 - SCIENTIFIC INQUIRY Jens Clausen and colleagues, at...Ch. 40 - Prob. 8TYUCh. 40 - FOCUS ON INTERACTIONS In a short essay (100-150...Ch. 40 - Prob. 10TYU
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