Topic 6 Vocabulary

Any relationship in which two species live closely together and that benefits at least one of the species.

• Symbiosis
• Niche
• Commensalism
• Mutualism
• Parasitism

How an organism makes its living and interacts with the biotic and abiotic factors in its habitat.

• Niche
• Symbiosis
• Commensalism
• Mutualism
• Parasitism

The number and variety of different species in an area.

• Biodiversity
• Niche
• Symbiosis
• Commensalism
• Mutualism

A type of symbiosis between two species in which one species benefits and the other species is neither helped nor harmed.

• Commensalism
• Niche
• Symbiosis
• Mutualism
• Parasitism

The series of predictable changes that occur in a community over time.

• Succession
• Niche
• Symbiosis
• Commensalism
• Mutualism

Species that are not native to a habitat and can out-compete native species in an ecosystem.

• Invasive Species
• Niche
• Symbiosis
• Commensalism
• Mutualism

A type of symbiosis in which one organism lives with, on, or in a host and harms it.

• Parasitism
• Niche
• Symbiosis
• Commensalism
• Mutualism

A species that influences the survival of many other species in an ecosystem.

• Keystone Species
• Niche
• Symbiosis
• Commensalism
• Mutualism

The first species to populate an area during succession.

• Pioneer Species
• Niche
• Symbiosis
• Commensalism
• Mutualism

The disappearance of all members of a species from Earth.

• Extincion
• Niche
• Symbiosis
• Commensalism
• Mutualism