Ecology
Random
Food Chains
Energy
Animals
100
Ture
True or False: a food chain can be classified as the passing of energy from one organism to another in a particular sequence
100
True
True or False: Scientist classify N, C, and water cycles as biogeochemical cycles
100
An organism that produces it's own food is a...
autotroph AKA producer
100
True or False: In an ecological pyramid, the biomass of an organism INCREASES at each successive level
False
100
One species benefits and the other is neither helped nor harmed (name that symbiotic relationship)
Mutualism
200
A biotic or abiotic resource in the environment that causes population size to decrease is a... (LIMITS it's growth)
limiting factor
200
The combined portions of Earth in which all living organisms exists is called...
biosphere
200
What is the ultimate and beginning source of energy?
the sun
200
T or F: greenhouse effect is when HEAT energy is trapped and cannot leave the atmosphere
T
200
What is the movement of organisms into a given area from another area? a.) immigrataion b.) emigration c.) population shift d.)carrying capacity
immigration
300
The lowest level of environmental complexity that includes living and nonliving factors is the...
ecosystem
300
List 2 abiotic factors?
...
300
Which type of pyramid shows the amount of living tissue at each trophic level in an ecosystem? ...energy?biomass? food? numbers?
energy
300
All the interconnected feeding relationships in an ecosystem make up a food... interaction? chain? network? web?
food web
300
When animals move OUT of a population it is known as...
emigration
400
An interaction in which one organism captures and feeds on another organism is called? ...competition? symbiosis? mutualism? predation?
predation
400
List the levels of complexity in order starting with one organisms.
organism, population, community, ecosystem, biosphere
400
A snake that eats a frog that has eaten an insect that fed on a plant is a... primary? secondary? tertiary?
tertiary
400
The total amount of living tissue in a given trophic level is called...organic mass? trophic mass? energy mass? biomass?
biomass
400
Organisms need nutrients in order to...
carry out essential life functions
500
What differentiates an ecosystem from a community?
the addition of abiotic factors
500
What is commensalism?
one is unaffected, the other benefits
500
What percentage is passed from one trophic level to the next?
10%
500
Each step in the energy pyramid is called a...? energy path? food chain? trophic level? food pyramid?
trophic level
500
What is the symbiotic relationship of an insect feeding on a flower?
mutualism
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