HABITATS AND ECOSYSTEMS
Food chain
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Types of ecosystems:
1.
Natural
ecosystems: develop without human intervention. i.e.: oak
forest.
Depending on factors like geographical relief, types
of soil and climate we find:
-
Aquatic:
fresh water as lakes and salt water as oceans.
-
Terrestrial:
the most important factors are light, temperature,
humidity and type of soil. i.e.: deciduous forest.
2.
Humanized
ecosystem: exist because of human intervention. i.e.: cities,
farms…
Changes in ecosystems
Sustainable development
