B16.1 The importance of communities Flashcards

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1
Q

What is a community?

A

Made up of populations of different species of plants and animals that are all interdependent in a habitat

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2
Q

What is a population

A

A population is a group of organisms of one species that interbreed and live in the same place at the same time.

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3
Q

What is an ecosystem?

A

A community of organisms interacting with the non-living abiotic elements of their environment

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4
Q

What are the features of a community?

A
Plants produce by photosynthesis
Animals eat plants
Animals pollinate plants
Animals eat other animals
Plants need nutrients from animal droppings
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5
Q

What is interdependence?

A

The living beings in an ecosystem depend on each other for their survival and growth.

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6
Q

What are some examples of a stable community?

A

Environmental factors are relatively constant - may change but in a regular pattern such as tropical rainforest
Fall tree allows light into the first flower so new seedlings can grow
Number of species remain relatively constant

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7
Q

What is a stable community?

A

Where all the species and the environmental factors are in balance so that population sizes remain fairly constant

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