Ecology Flashcards

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1
Q

Ecology

A

The study of the interactions between living things and between organisms and their environment.

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2
Q

Biosphere

A

Part of the planet containing living organisms

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3
Q

Ecosystem

A

A group of organisms that interact with their environment

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4
Q

Habitat

A

A place where a plant or animal lives

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5
Q

Population

A

All members of the same species living in an area

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6
Q

Community

A

All the members of different population in an area

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7
Q

Niche

A

The functional role an organism plays in the community

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8
Q

Scramble competition

A

A struggle for a resource in limited supply

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9
Q

Pollution

A

Any harmful addition to the environment

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10
Q

Conservation

A

management of the environment

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11
Q

Primary Consumers

A

Animals that feed on producers

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12
Q

Secondary Consumers

A

Animals that feed on primary consumers

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13
Q

Tertiary Consumers

A

Animals that feed of secondary consumers

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14
Q

Food Chain

A

Sequence of organisms in which each one is eaten by the next member of the chain

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15
Q

Trophic level

A

A feeding stage in a food chain

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16
Q

Food Web

A

Consists of two or more interconnected food chains

17
Q

Pyramid of numbers

A

Number of organisms at each trophic level

18
Q

Predation

A

The catching, killing and eating of another organism

19
Q

Parasitism

A

Two organisms of different species live close to each other and one organism obtains its food from the other organism causing it harm.