Ecosystems
all populations in an ecosystem
community
what happens to a population when there are more deaths than births
decrease
cannot make their own energy molecules
consumers
term for the nonliving part of an ecosystem
abiotic
Where all energy ultimately comes from
Sun
all organisms in an ecosystem that belong to the same species
population
all organisms in an ecosystem that belong to the same species
population
meat eaters
carnivores
symbiotic relationship where both species benefit
mutualism
Where energy is stored by a producer
molecules made by the producer
the biotic part of soil
humus
complex feeding relationship among the all organisms in an ecosystem
food web
can consume both plants and animals
omnivore
symbiotic realtionship where one organism benefits and the other is not affected
commensalism
simple feed relationship among organisms in an ecosystem
food chain
all organisms living in an area along with the nonliving features of the environment
ecosystem
close relationship between species
symbiosis
eat only plants
herbivore
symbiotic relationship where one organism benefits and the other is harmed
parasitism
shows how the energy in a community is interconnected
food web
how an organism survives in its environment
niche
the population density when 10 rabbits are living in a 200 square yard area?
.05 rabbits per square yard
breaks down dead organisms
decomposer
example of an abiotic factor in an ecosystem
rocks, sunlight, climate, sand, etc.
what happens to the energy in a food web
converted to different forms