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Chapter #10 Flashcards

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Biology 101 flashcards
1
Q

all the living things and nonliving things in a given area…

A

ecosystem

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2
Q

a nonliving thing in an ecosystem…

A

abiotic factor

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3
Q

a living or once-living thing in an ecosystem…..

A

biotic factor

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4
Q

the place within an ecosystem where an organism lives ; provides the biotic and abiotic factors an organism needs to survive and reproduce….

A

habitat

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5
Q

all the organisms of the same species that live in the same area at the same time…

A

population

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6
Q

all the populations living in an ecosystem at the same time….

A

community

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7
Q

the size of a population compared to the amount of space available…

A

population density

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8
Q

the way a species interacts with abiotic and biotic factors to obtain food, find shelter, and fulfill other needs…

A

niche

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9
Q

the demand for resources, such as food,water, and shelter, in short supply in a community….

A

competition

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10
Q

the condition that occurs when a population becomes so large that it causes damage to the environment…..

A

overpopulation

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11
Q

the act of one organism, the predator, feeding on another organism, its prey….

A

predation

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12
Q

a close, long-term relationship between two species that usually involves an exchange of food or energy….

A

symbiosis

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13
Q

a symbiotic relationship in which both organisms benefit….

A

mutualism

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14
Q

a symbiotic relationship that benefits one species but does not harm or benefit the other….

A

commensalsim

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15
Q

a symbiotic relationship in which one organism benefits and other is harmed….

A

parasitism

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16
Q

an organism that uses an outside energy source , such as the Sun, and produces its own food……

A

producer

17
Q

an organism that cannot make its own food and gets energy by eating other organisms …….

A

consumer

18
Q

a model that shows how energy flows in an ecosystem through feeding relationships..

A

food chain

19
Q

a model of energy transfer that can show how the food chains in a community are interconnected….

A

food web

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