Ecosystems
Food Webs
Populations and Food Chain
Cycles
Soil
100
Tundra, desert, tropical rain forest, and grassland are all examples of what?
Biomes
100
What are the levels called in a food pyramid?
Trophic levels
100
A group of organisms belonging to the same species that are living in the same area
Population
100
This cycle includes evaporation, condensation, precipitation
Water cycle
100
In a soil profile, this layer is solid rock
Bedrock
200
Is carbon known as a biotic or abiotic component of the environment?
Abiotic
200
What percent of energy is passed on to the next trophic level?
10%
200
The final link in all food chains and food webs
Decomposers
200
Plants use what during photosynthesis along with the sun to produce sugars and oxygen?
Carbon dioxide
200
The organic component of soil, formed by the decomposition of leaves and other plant material by soil microorganisms.
Humus
300
The amount or mass of organic material in an ecosystem
Biomass
300
An autotroph is known as a: a)consumer b)herbivore c)producer d)carnivore
c)producer
300
FREE POINTS!!!
THAT'S RIGHT, FREE!!
300
Fixation, denitrification, nitrification, and decay are the four processes in which cycle?
The nitrogen cycle
300
Why is there no soil on Mars or Venus?
There is no life on these planets - without life, no soil
400
The role of an organism within its ecosystem
Niche
400
An animal that eats both meat and plants is called?
An omnivore
400
A black bear would be considered mostly a what level consumer?
1st
400
Also known as the hydrologic cycle
Water cycle
400
What are three ways that nitrogen can be "fixed"?
Bacteria, lightning, and fertilizer
500
The branch of Biology that deals with the relation of living organisms to their environment and to each other
Ecology
500
The flow of energy from one organism to the next
Food chain
500
What caused an increase in the deer population in the game we played?
Lots of different resources and little competition (ie. not all the deer were looking for water, etc)
500
The process where nitrogen fixing bacteria convert nitrogen gas into organic compounds that living organisms can take up
Nitrogen fixation
500
The perfect soil for plants and small organisms
Loam