Introduction
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Objectives
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glossary
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Objectives
In this chapter you should learn that:
Ecology is a field of biology Ecologist study the interactions between species and their
environment Ecosystems are made of the species and the environment in
an ecological unit A large part of the Baltic Sea basin was covered by ice
during the latest ice age The Baltic Sea basin is a relatively species poor area In more densely populated areas man-made changes nowadays
dominate the landscape Man-made landscapes exclude many species that used to be
widespread
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