Science A Global Concern 16th Edi�on By
William Cunningham, Mary Cunningham
(All Chapters 100% Original Verified, A+
Grade)
Part 1: Data Analysis Answers
Part 2: Quan�ta�ve Reasoning Answers
Part 3: Sec�on Review Answers
, Part 1
Chapter 1
Topic: Data Analysis
Title: Working with Graphs
Graphs are one of the most common and important ways scientists communicate their results. Learning
to understand the language of graphs will help you understand ideas in this book. Graphs help us
identify trends and understand relationships. We could present a table of numbers, but most of us have
difficulty seeing a pattern in a large field of numbers. In a graph, we can quickly and easily see trends
and relationships.
Below is a graph showing ecological footprints. Often, we pass quickly over graphs like these that appear
in text, but it’s rewarding to investigate them more closely, because their relationships can raise
interesting questions. Go to Connect to answer questions about this graph and to demonstrate your
understanding of graph reading.
For a full discussion of ecological footprints and the many components that contribute to its calculation,
see the WWF Living Planet Report, https://livingplanet.panda.org/. To calculate your own footprint, visit
the Global Footprint Network http://footprintnetwork.org/.
Questions and Answers
Go to Connect to find the questions and answers for this chapter.
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No reproduction or distribution without the prior written consent of McGraw Hill LLC.
,Chapter 2
Topic: Data Analysis
Title: Snapshot Serengeti
Go to Snapshot Serengeti (https://www.zooniverse.org/projects/zooniverse/snapshot-
serengeti/classify) and review the tutorial information. This site provides motion-sensor activated
snapshots, including the one shown here.
How many species are in the collection?
Go through the tutorial. How many species did you see?
After the tutorial, try continuing and classifying more species. As you do it, remember that you are
helping to collect primary data, creating a data set that many researchers can use to answer ecological
questions. As you work, identify two or three potential questions of your own. How might you form
them into testable hypotheses?
FIGURE 1 Snapshot Serengeti lets you contribute to current research and also to learn about wildlife species.
SNAPSHOTSAFARI/Sarah Huebner/Dr. Craig Packer
Questions
1. How many species are in the collection?
2. Go through the tutorial. How many species did you see?
3. As you work, identify two or three potential questions of your own. How might you form them into
testable hypotheses?
Answers
1. 56 species
2. The number of species may vary.
3. Answers will vary, but based on the case study discussion, research questions could lead to testable
hypotheses such as “grazers are more numerous than predators,” or “most predators are active at
night,” or “large herbivores are more likely to have young present than carnivores are.”
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No reproduction or distribution without the prior written consent of McGraw Hill LLC.
, Chapter 3
Topic: Data Analysis
Title: Inspect the Chesapeake’s Report Card
As you know, nutrient cycling and nutrient supplies, or excesses, are key aspects of marine ecosystems
in the Gulf of Mexico and many other areas. One system for which you can readily find recent, detailed
insights on nutrient impacts is Chesapeake Bay. This system has been studied in detail because
improving water quality is critical for economic health in the region.
Go to https://ecoreportcard.org/report-cards/chesapeakebay/bay-health/ and click on “Learn
More” to see recent data. This site is maintained by the University of Maryland and the National Oceanic
and Atmospheric Administration (NOAA), with the support of many collaborators and data providers.
Use this site to examine recent data on chlorophyll, nutrients, and other measures of the bay’s health.
Chapter 4
Topic: Data Analysis
Title: Seagrass Spotter
In the opening case study, you read about the Seagrass Spotter project. If you live or vacation near a
coastal area, this is something you can try contributing to. While you are in the classroom or the library,
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No reproduction or distribution without the prior written consent of McGraw Hill LLC.