Liv env final Exam Study Guide.
Ecosystem - answerliving and nonliving things of an environment
community - answerliving things in an environment
biosphere - answerparts of earth where life exists
on a food pyramid what would have the highest biomass - answerprimary producers
on a food pyramid...
Ecosystem - answer✔living and nonliving things of an environment
community - answer✔living things in an environment
biosphere - answer✔parts of earth where life exists
on a food pyramid what would have the highest biomass - answer✔primary producers
on a food pyramid what would have the lowest biomass - answer✔tertiary
an ecosystem is stable when there is - answer✔genetic diversity
Symbiosis - answer✔close relationship between 2 organisms of different species
competition - answer✔2 species fighting for resources
mutualism - answer✔2 species relying on each other (+,+)
Commensalism - answer✔1 organism benefits of another, other has neutral affect (+,0)
parsitism - answer✔a relationship where one benefits while the other is harmed
primary succession begins on - answer✔side of glacier recession, volcanoes
Do lichens need soil to survive? - answer✔no
soil starts to form when - answer✔lichens and the forces of weather and erosion help break
down rocks into tinier pieces
when lichens die they - answer✔decompose adding small amounts of organic matter to rock to
make soil
dissolved carbon dioxide in a lake is used directly by - answer✔autotrophs
after a population reaches carrying capacity it will - answer✔increase and decrease
what is necessary for recycling nitrogen? - answer✔bacteria
what do plants in the nitrogen cycle do - answer✔absorb nitrates for protein
monomer of carbohydrates - answer✔glucose
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