1.
How an organism makes its living and interacts with the biotic and abiotic factors in its habitat.
2.
The struggle between organisms to survive as they attempt to use the same limited resources in the same place at the same time.
3.
An interaction in which one organism kills another for food or nutrients.
4.
Any relationship in which two species live closely together and that benefits at least one of the species.
5.
A type of symbiosis between two species in which one species benefits and the other species is neither helped nor harmed.
6.
A type of symbiosis in which both species benefit from living together.
7.
A type of symbiosis in which one organism lives with, on, or in a host and harms it.
8.
The series of predictable changes that occur in a community over time.
9.
The first species to populate an area during succession.
