1.
Parts of Earth and the surrounding atmosphere where there is life
2.
All the organisms of the same species that live in the same area at the same time
3.
Group of organisms that have similar traits and are able to produce fertile offspring
4.
All the populations of different species that live together in the same area at the same time
5.
Anything that restricts the size of a population
6.
Growth of a population under perfect conditions with no limiting factors
7.
Largest number of individuals of one species that an ecosystem can support
8.
When a population’s size grows so large that it causes damage to the environment
9.
Close, long-term relationship between two species that usually involves an exchange of food or energy
10.
Symbiotic relationship in which both partners benefit
11.
Symbiotic relationship that benefits one species and harms the other
12.
Symbiotic relationship that benefits one species but does not harm or benefit the other
13.
When two or more individuals interact with another
14.
Individuals of the same species working together for the benefit of everyone
15.
When a predator hunts and kills prey
16.
Two or more organisms have to share a habitat thus competing for resources
17.
Process of one ecological community gradually changing into another
18.
Stable community that no longer goes through major ecological changes
19.
Process of a body of water becoming nutrient rich
20.
balance between the different parts of the ecosystem
