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Exam 1: The Nature of Ecology

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Question 1

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If an ecologist wanted to illustrate whether a relationship exists between body length and body weight, he would probably produce a(n)________.

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Question 2

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Explain why ecology is inherently an interdisciplinary science. Give two examples of the ties between ecology and other branches of science.

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Ecology is inherently an interdisciplina...

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Question 3

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An ecologist conducts a greenhouse experiment to study the effect of nitrogen concentration on the productivity of Eucalyptus seedlings. What is the dependent variable in this experiment?

Describe a field experiment that you might use to test the hypothesis that water availability affects plant growth. Suggest one set of possible results and the implications of those results for the hypothesis.

Whether abiotic or biotic, environmental factors fall into one of three categories

The biotic and abiotic components of the environment interacting together are referred to as a(n)________.

A hypothesis refers to a(n)

A group of individuals of the same species occupying a given area is referred to as a(n)

The biosphere is

An "educated guess" that a scientist poses to explain an observed phenomenon is referred to as a(n)________.

At the ________ level, communities and ecosystems are linked through processes such as dispersal of organisms.

Define five types of data that can be used for quantitative analyses and give an example of each.

The mechanism that allowed the science of ecology to go beyond just descriptive natural history and instead study the processes which control distribution and abundance of organisms is

A hypothesis is an integrated set of theories.

The ________ forms the basic unit in ecology.

The number of seeds produced by a single flower affects the birth rate of that population of flowers.

When data are categorical, any value within an interval is possible.

An ecologist who adds different amounts of nitrogen to specific plots of grasses uses a(n)________ to answer her research question.

All populations of different species living and interacting within an ecosystem are referred to as a(n)________.

Ecology is an interdisciplinary science that relies heavily on many different branches of science.