1. Academic Science B Ms. Philavane
What is Ecology?
Academic Science B
Ms. Philavane

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Ecology
Study of the interactions among the organisms and their environment or surroundings.
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Ecology
Since all living organisms are located on Earth, it is often called a biosphere
What does bio + sphere mean?
bio = life; sphere = globe
Bio + sphere = living globe
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4. Levels of Organization
Ecologists study relationships in the biosphere on many levels from the entire biosphere to the single individual.
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Biosphere
Includes all parts of the planet in which life exists, including land, water, air or the atmosphere.
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Biome
A group of ecosystems that have the same climate and similar dominant communities.
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How do you study a biome?
When ecologists study an individual biome, it is usually broken down into smaller parts called ecosystems.
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Ecosystem
A collection of all the organisms (biotic factors) that live in a particular place, together with their nonliving, or physical, environment (abiotic factors).
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Community
Different populations that live together in a defined area.
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Populations
Group of individuals that belong to the same species and live in the same area.
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Individual Species
A group of organisms that can breed and produce fertile offspring.
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