Ecosystems Flashcards

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1
Q

What is a ecosystem

A

A community of biotic organisms interacting with the abiotic environment.

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2
Q

What is a abiotic factor

A

Non-living parts of an ecosystem

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3
Q

What is a biotic factor

A

Living parts of an ecosystem

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4
Q

Consumer definition

A

Organism that gets its energy from eating other organisms

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5
Q

Producer definition

A

Gets it’s energy from sunlight

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6
Q

Decomposer definition

A

Gets it’s energy from broken down dead material

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7
Q

Compare a food chain and a food web

A

A food chain- connection between different organisms that rely on eachother as their food source. Food web- complex hierarchy of organisms relying on eachother for food.

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8
Q

Define the nutrient cycle

A

A set of processes where organisms extract mineral necessary for growth from soil or water before passing them through the food chain and back into the soil and water.

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9
Q

Define a global ecosystem

A

Large scale ecosystems that all cover a large amount of the planets surface

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10
Q

Name two characteristics of Tundra

A

•very cold through most of the year
•found Northern Europe/Canada/Alaska
•sparse/no tree growth
•low precipitation

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11
Q

Characteristics of a desert

A

•low precipitation
•less then 250mm of rainfall per year
•extreme temperatures 45 at day 0 at night
• very dry

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12
Q

Characteristics of polar regions

A

• dry/cold/icy all year
•northern and South Pole
•short growing season
•in areas such as Antarctica/Greenland

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