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BJU Biology > Ecology > Flashcards

Ecology Flashcards

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1
Q

sum of all the habitable ecosystems on the earth

A

biosphere

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2
Q

study of the interrelationships between living things and their physical environment

A

ecology

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3
Q

measurement of the variety of life in a particular ecosystem

A

biodiversity

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4
Q

the set of plants and animals that are adapted for life in those parts of Earth characterized by a particular climate

A

biome

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5
Q

the community of organisms in a particular area along with the physical characteristics of their environment

A

ecosystem

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6
Q

physical portion of an ecosystem preferred by an organism

A

habitat

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7
Q

the role of an organism within its habitat

A

niche

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8
Q

nonliving

A

abiotic

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9
Q

living or derived from living things

A

biotic

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10
Q
A

population

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11
Q
A

vertical zonation

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12
Q

an autotrophic organism, that is, one that can produce its own food from light or chemical energy

A

producer

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13
Q

a heterotrophic organism, one that cannot produce its own food and must obtain energy by consuming other organisms

A

consumer

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14
Q

conflict that results when organisms attempt to use the same resources

A

competition

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15
Q

small particles of dead organic material

A

detritus

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16
Q

an organism that breaks down dead organic material, recycling nutrients to be used by other organisms

A

decomposer

17
Q

nutritional relationships between populations in an ecosystem involving overlapping food chains

A

food web

18
Q

a model for showing the flow of energy through the various trophic levels within an ecosystem from producers to top level consumers

A

ecological pyramid

19
Q
A

symbiosis

20
Q

a symbiotic relationship between two organisms in which one organism benefits at the expense of the other organism, known as the host

A

Parasitism

21
Q

a symbiotic relationship between two organisms that benefits both organisms involved

A

mutualism

22
Q

a symbiotic relationship between two organisms that benefits one organism without helping or harming the other organism

A

commensalism

23
Q

a symbiotic relationship in which two organisms share the same habitat without directly affecting each other

A

Neutralism

24
Q

symbiotic relationship between two organisms that is injurious to one organism without affecting the other organism

A

amensalism

BJU Biology (1 decks)

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