Food Chains, Food Webs, and Energy Levels Vocabulary

The intimate living together of members of two different species; including mutualism, commensalism, and, in some classifications parasitism

• Parasitism

• Primary Succession

• Predator-Mediated Competition

• Pioneer Species

• Symbiosis

A situation in which predation reduces prey population and gives an advantage to competitors that might not otherwise be successful.

• Parasitism

• Primary Succession

• Predator-Mediated Competition

• Pioneer Species

• Symbiosis

An organism that lives in or on another organism, deriving nourishment at the expense of its host, usually without killing it.

• Parasitism

• Primary Succession

• Predator-Mediated Competition

• Pioneer Species

• Symbiosis

Answer explanation

An ecological succession that begins in an area where no biotic community previously existed.

• Parasitism

• Primary Succession

• Predator-Mediated Competition

• Pioneer Species

• Symbiosis

In primary succession on a terrestrial site, the plants, lichens, and microbes that first colonized a site.

• Parasitism

• Primary Succession

• Predator-Mediated Competition

• Pioneer Species

• Symbiosis

Answer explanation

The place or set of environmental contitions in which a particular organism lives.

• Abundance

• Climax Community

• Ecological Niche

• Habitat

• Mutations

A relatively stable, long-lasting community reached in a successional series; usually determined by climate and soil type.

• Abundance

• Climax Community

• Ecological Niche

• Habitat

• Mutations

Answer explanation

The number or amount of something.

• Abundance

• Climax Community

• Ecological Niche

• Habitat

• Mutations

The functional role and positition of a species (population) within a community or and ecosystem, including what resources it uses, how and when it uses the resources, and how it reacts with other populations.

• Abundance

• Climax Community

• Ecological Niche

• Habitat

• Mutations

Any changes, either spontanious or by external factors, in the genetic material of a cell. These changes held in the gametes (sex cells) can be inherited by future generations or organisms.

• Abundance

• Climax Community

• Ecological Niche

• Habitat

• Mutations