10.2 Ecology Flashcards

1
Q

ecosystem

A

all organisms in a community and abiotic factors

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2
Q

four major systems

A

atmosphere, hydrosphere, lithosphere, biosphere

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3
Q

autotroph

A

producer Ex: grass, feed themselves

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4
Q

heterotroph

A

tertiary consumer, need others for nutrients

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5
Q

decomposers vs consumers

A

both heterotrophs and decomposers break down for nutrients

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6
Q

food web

A

producers, primary, secondary, tertiary, quaternary

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7
Q

producer

A

autotroph

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8
Q

consumers

A

heterotroph

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9
Q

herbivores

A

c1 or primary consumer

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10
Q

omnivores

A

c1+c2 primary and secondary

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11
Q

carnivores

A

c2+ secondary and up

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12
Q

food web example
wood rat
rattlesnake
hawk

A

primary consumer-herbivore
secondary consumer-omnivore
tertiary consumer-carnivore

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13
Q

pyramid of energy

A

of energy passing through each level offers over a period of time

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14
Q

pyramid of biomass

A

compares the mass of biological material at each level

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15
Q

pyramid of #’s

A

compares #’s of organisms at each level

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16
Q

how do they lose engery

A

from heat and cellular respiration

17
Q

how much energy do they pass from each level

A

10%

18
Q

Why is it considered more efficient to eat at a lower trophic level vs. a higher trophic level?

A

because there are fewer predators in the lower ends and there is more energy at the bottom when you start going up with each level you get less and less energy

19
Q
A