Unit 5 Flashcards

1
Q

A species that is important in maintaining biodiversity is known as

A

a keystone species

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2
Q

What is mutualism

A

When two species relantionship helps each other

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3
Q

What is parasitism

A

when two species relantionship harms the other and beneifits one

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4
Q

what is commensalism

A

When two species relantionship beneifits one and has no effect on the other

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5
Q

what is competetion

A

when two species compete for resources

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6
Q

How does energy change at each level of consumer

A

producers have the most energy while apex predators have the least

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7
Q

What is a limiting factor

A

A factor that causes a population’s size to slow or decrease

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8
Q

What is a keystone species

A

A species that is important in maintaining biodiversity

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9
Q

What is logistic growth

A

When competetion and resoucres become scarce and reach the carrying capacity, which causes their growth to slow to 0, this produces a s shape curves

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10
Q

What is exponential growth

A

It is growth that is uncontrolled

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11
Q

Animals obtain nitrogen by

A

comsuming plants

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12
Q

Factors that are non-living are

A

abiotic factors

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13
Q

Factors that are living are

A

biotic factors

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14
Q

A population typically stops growing when

A

it reaches the carrying capacity

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15
Q

grass-insects-frogs-owl-hawk - what happens if insects suddently die

A

the amount of grass increases

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16
Q

What is the carbon cycle

A

process by which carbon compounds are introconverted in the evniroment

17
Q

What is the nitrogen cycle

A

the process by which nitrogen and its compounds are interconvetred in the enviroment

18
Q

.

Species richness tends to be higher near the

A

the equator

19
Q

How do heterotrophs obtain carbon

A

They consume autotrophs.

20
Q

How is the nitrogen cycle differ from the carbon cycle?

A

Nitrogen requires specific bacteria so that it can cycle.

21
Q

Populations grow logistically when

A

resources are limited