Ecology Flashcards

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1
Q

Ecosystem

A

A biological community of interacting species

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2
Q

Biotic Factors

A

Living components that affects another organisms

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3
Q

Abiotic Factors

A

Non living chemicals

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4
Q

Organisms

A

An individual life-form, animal, plants

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5
Q

Species

A

Largest group of organisms

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6
Q

Population

A

All the organism of the same species living in a common area

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7
Q

Community

A

an interacting group of various species in a common location

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8
Q

Habitat

A

place where an organism or a community of organisms lives, including all living and nonliving factors or conditions of the surrounding environment

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9
Q

Natural selection

A

organisms better adapted to the environment and are tend to survive

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10
Q

Evolution

A

is the process by which organisms change over time

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11
Q

Producers / autotrophs

A

an organism that is able to form food for itself

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12
Q

Consumers / heterotrophs

A

can’t produce its own food

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13
Q

Primary consumer

A

is a consumer that feeds on the primary producer

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14
Q

Secondary consumer

A

Second position in the food chain

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15
Q

Tertiary consumer

A

The top of the food chain

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16
Q

Herbivores

A

Eats plants

17
Q

Carnivores

A

Eats meats and other organisms

18
Q

Omnivores

A

Eats both meat and plants

19
Q

Decomposers

A

an organism that decomposes organic material

20
Q

Food chain

A

Is a chain of organisms that are dependent on the ones below it

21
Q

Food web

A

a system of interlocking food chains

22
Q

Energy pyramid

A

is graph of energy flow in a community

23
Q

Carbon cycle

A

the series of processes by which carbon compounds are consumed in the environment

24
Q

Nitrogen cycle

A

the series of processes by which nitrogen and its compounds are consumed in the environment

25
Q

Ecological succession

A

Change in species structure in an environment

26
Q

Primary succession

A

new substrate devoid of vegetation and other organisms usually lacking soil

27
Q

Secondary succession

A

Is an event like a forest fire that ruins everything

28
Q

Pioneer species

A

Pioneer species are hardy species which are the first to colonize previously bio diverse steady-state ecosystems

29
Q

Climax community

A

the process of ecological succession in the development of vegetation in an area over time, have reached a steady state