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Chapter 4: Ecosystems and Communities

memorize.ai (lvl 286)

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Section 1

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Sybiosis

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Last updated

6 years ago

Date created

Mar 14, 2020

Cards (11)

Section 1

(11 cards)

Sybiosis

Front

Relationship in which two species live closely together

Back

Secondary succession

Front

Succession that occurs in an area that was only partially destroyed by disturbances (ex: natural disasters)

Back

Keystone species

Front

- Species on which other species in an ecosystem largely depend, such that if it were removed the ecosystem would change drastically - Not usually abundant, but very important

Back

Competitive exclusion principle

Front

No two species can occupy exactly the same niche in exactly the same habitat at exactly the same time

Back

Describe the greenhouse effect

Front

- Process in which certain gasses trap sunlight energy in Earth's atmosphere as heat (natural) - Gasses include: carbon dioxide, methane, and water vapor

Back

Three types of symbiotic relationships

Front

- Mutualism: beneficial to both species - Parasitism: one species benefits (parasite), other is harmed - Commensalism: one species benefits and the other is neither harmed nor helped

Back

Primary succession

Front

Succession that occurs in an area in which no trace of a previous community is present

Back

What factors influence a reigion's climate?

Front

Some include: latitude, elevation, nearby water, ocean currents, topography, vegetation, and prevailing winds

Back

What is a niche and how does it help organisms survive?

Front

- A niche is a role that an organism plays in its habitat and how it interacts with the environment - It helps organisms survive because they dont all need the same resources

Back

Climax community

Front

- Stable community that no longer goes through major ecological changes - Can be recreated through secondary succession

Back

Biomes

Front

- Group of ecosystems that share similar climates and typical organisms - Described by climate, soil type, plant+animal life - Ex: Desert, grasslands, rainforest taiga, temperate forest, tundra (review biomes?)

Back