a single organism in an environment
organisms of the same kind living in the same environment
all the populations of organisms living together in an environment
part of the environment and its physical environment
populations live in a certain part of an ecosystem
the role of a population
captures energy from the sun and stores it in tissue, and passes it on to other organisms.
an organism that obtains energy and nutrients by feeding on other organisms or their remains.
example: all animals
show how organisms are related to one another according to what they eat
relationships between food chains
long-term relationship between different kinds of organisms
having a population that is so small that it is likely to disappear
behaviors animals are taught or acquire after birth
due to limited resources, there is this among organisms
behavior that an organism inherits