b19 Flashcards

(9 cards)

1
Q

ecosystem

A

a unit containing a community of organisms and their physical environment, interacting together.

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2
Q

biodiversity

A

the number of different species living in a particular area.

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3
Q

reasons for habitat destruction

A

Increasing land needed for housing, crop production, and livestock farming

Extraction of natural
resources (e.g. mining, logging)

Pollution of freshwater and marine environments

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4
Q

habitat

A

the place where an organism lives

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5
Q

undesirable effect of deforestation?

A

Reduced biodiversity
Extinction of species
Loss of soil

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6
Q

deforestation

A

the permanent removal of forests to use the land for other purposes, such as farming, building, or mining.

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7
Q

Why do organisms become endangered or extinct?

A

-hunting
-pollution
-Introduced species

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8
Q

How can endangered species be conserved?

A

-education
-monitoring and protecting
-captive breeding program

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9
Q

captive breeding and program

A

bred in controlled environments (e.g., zoos), and offspring may be released back into the wild.

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