Vocab Cards Flashcards

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1
Q

Tolerance

A

the ability to survive and reproduce under a range of environmental circumstances

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2
Q

Habitat

A

the general place where an organism lives

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3
Q

Niche

A

describes not only what an organism does, but also how it interacts with biotic and abiotic factors in the environment

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4
Q

Resource

A

can refer to any necessity of life, such as water, nutrients, light, food, or space

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5
Q

Competitive exclusion principle

A

states that no two species can occupy exactly the same niche in exactly the same habitat at exactly the same time

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6
Q

Predation

A

an interaction in which one animal captures and feeds on another animal

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7
Q

Herbivory

A

an interaction in which one animal feeds on producers

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8
Q

Keystone species

A

changes in the population of a single species

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9
Q

Symbiosis

A

any relationship in which two species live closely together

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10
Q

Mutualism

A

kind of relationship between species in which both benefit

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11
Q

Parasitism

A

relationships in which one organism lives inside or on another organism and harms it

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12
Q

Commensalism

A

a relationship in which one organism benefits and it neither helped nor harmed

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13
Q

Ecological succession

A

a series of more-or-less predictable changes that occur in a community over time

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14
Q

Primary succession

A

succession that begins in an area with no remnants of an older community

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15
Q

Secondary succession

A

where a disturbance affects the community without completely destroying it

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16
Q

Pioneer species

A

the first species to colonize barren areas

17
Q

Population density

A

the number of individuals per unit area

18
Q

Age structure

A

the number of males and females of each age a population contains

19
Q

Immigration

A

a population may grow if individuals move its range from elsewhere

20
Q

Emigration

A

a population may decrease in size if individuals move out of a populations range

21
Q

Exponential growth

A

the size of each generation of offspring will be larger than the generation before it

22
Q

Logistic growth

A

when a populations growth slows and then stop’s following a period of exponential growth

23
Q

Carrying capacity

A

the maximum number of individuals of a particular species that a particular environment can support

24
Q

Limiting factors

A

a factor that controls the growth of a population

25
Q

Density-dependent limiting factors

A

operates strongly only when population density-the number of organisms per unit area-reaches a certain level

26
Q

Density-independent-limiting factors

A

affect all populations in similar ways, regardless of population size and density