community and competition Flashcards

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1
Q

habitat

A

place where an organism lives

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2
Q

population

A

all the organisms of a particular species that live in a habitat

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3
Q

community

A

all the populations of different species that live together in a habitat

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4
Q

biotic factors

A

living factors of the environment that affect other organisms or shape the ecosystem in some way
eg. availability of food
predators
new diseases
competition

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5
Q

abiotic factors

A

non living factors, generally physical/ chemical parts of the environment
eg. light intensity
temperature
soil pH / mineral content
CO2 conc
wind direction/ intensity
moisture levels

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6
Q

ecosystem def

A

the interaction of a community of living organisms with the non living parts of their environment

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7
Q

animal competition

A

territory
food and water
mates for reproduction

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8
Q

plant competition

A

space to grow
light for photosynthesis
water and mineral ions

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9
Q

interdependence

A

all species depend on other species in some way (food web)

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10
Q

competition def

A

interaction between organisms or species in which they both try to use the same limited resource

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11
Q

adaptation

A

structural- physical features we see
behavioural- how an organism acts
functional- processes going on within an organism

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12
Q

extremophiles

A

organisms adapted to live in extreme conditions
eg, high/low temp, high pressure (deep sea), high salt conc

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13
Q

food chain

A

producer- photosynthetic organism
primary consumer- eats producer
secondary consumer- eats PC
tertiary consumer- eats SC

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14
Q

energy in food chain

A

mostly lost as it goes up food chain, little conserved

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15
Q

pred prey cycles

A

show relat between pred and prey
pred always lags behind prey (eg, pop increase)
described as being out of phase

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