Energy in Ecosystems
what is a tropic level
a level at witch an animal eat and is consumed
both species benefits
mutualism
what's a producer
an organism that makes its own food
Abiotic Factor
The non-living parts of an ecosystem such as soil, climate and rainfall.
density
the number of individuals per unit area or volume
how does energy pass through an ecosystem
it is through the ecosystem when animals eat other animals
commensalism
one species benefits, the other is not affected
how much energy is lost everytime you go up in a pyramid
90%
carrying capacity
the largest population that a given environment can support.
speciation
the process by which new species are created
all animals need what to survive ?
energy
species compete against one another for survival
competition
Whats above primary consumer
a system formed by the interaction of a community of organisms with their physical (abiotic) environment
ecosystem
The number of babies born annually per 1,000 women of reproductive age in any given set of people.
birth rate
what is a decomposer
break down dead organic matter
predation
one animal, hunting, killing and eating another for survival
what are the levels of organization
the levels of the food webs and pyramids
An abiotic factor that describes overall weather in an area over a long period of time
climate
what is a population
a group of individuals of a single species living in the same general area
what is a system of interlocking and interdependent food chains
food web
what is a symbiotic relationship
Close relationship between two organisms, two species related/interacting in environment. There are 5 types of symbiotic relationships
what is at the top of the food pyramid
apex predator
animals that feed on the bodies of dead organisms.
scavengers
immigration
The arrival of new individuals into a habitat or population.