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*Ecology 1

Name: _____________________________
Date: ______________________________
Horizontales
A measure of the richness, with regard to species, that is found within an area. The more varied an ecosystem is, the more stable the ecosystem.
A ___ species is the first species to populate an area during succession.
Those resources that are unable to be replaced and, once used up, are gone. Fossil fuels are examples of this type of resource.
Those resources that can be replaced, recycled, or renewed, such as water, air or trees.
Relationship in which one organism lives on or inside another organism and harms it.
The population that can be supported by available nutrients and space within an ecosystem.
The non-living factors that influence living organisms such as water, temperature, soil, and atmosphere.
Symbiotic relationship in which both species benefit.
The process of converting nitrogen gas into nitrogen compounds plants can absorb and use.
_____ factor any living part of the environment with which an organism might interact.
Verticales
Non-native species that have been introduced into a new area.
Another name for a heterotroph.
A _____ species is a single species that is not usually abundant in a community yet exerts a strong control on the structure of the community.
Predator-____ is a relationship between two animals where one will feed on and influence the population of the other.
____ relationship in which one organism benefits and the other is neither helped or harmed.
Multiple complex conditions, such as increasing greenhouse gases and ozone depletion, that causes Earth's atmosphere to heat up. This increased atmospheric temperature can lead to habitat destruction and eventually to extinction of certain species.
Microscopic organisms that live in aquatic environments.
Energy sources such as gas, coal, and oil that were formed from the decaying remains of ancient living organisms such as plants.
Animal that consumes the carcasses of other animals.
The interaction of living organisms and non-living factors within a defined area.
This harmful precipitation can destroy habitats, especially in areas east of the release of the pollutants.
The area where an organism lives, including the biotic and abiotic factors that affect it.
A relationship in which organisms live close together.
____ plankton: small free-floating animals in aquatic environments.