A tree is a
biotic
Organisms that make their own food are called this
producers
one path of energy flow
food chain
When two organisms both benefit
mutualism
an organism's role or job is its
niche
Water, temperature and sunlight are
abiotic
The main source of energy for most ecosystems
the sun
this shows many connected chains
what is a food web
when two organisms fight over the same resource
competition
A beaver building dams is part of its
niche
A Skeleton is
biotic
A rabbit that eats grass is this type of consumer
Primary consumer
in a food web, arrows shows this
direction of energy flow
A hawk eating a rabbit is an example of this relationship
predation
all members of one species in an area
population
A drought mainly affects which type of factor first: biotic or abiotic?
Abiotic
Grass-> mouse-> snake-> hawk
the snake is this type of consumer
secondary consumer
if the mouse population decreases, name one organism that would be affected and explain how
Snakes or hawks that eat mice
in predation, this organism does the hunting
predator
all living organisms ( even of different species)
community
Explain why soil can be considered both biotic and abiotic
soil contains nonliving and living properties
Explain what would happen to a food chain if all producers disappeared
the food chain would collapse
Why are food webs more accurate than food chains
organisms eat more than one thing
Explain how competition can limit population size
limited food or resources
A flood changes habitats and food availability. Explain how this could affect community
it could change population size or food webs or survival of a species