Ecosystem Levels and Components

Front

What is parasitism?

Back

A relationship between two organisms where one organism (the parasite) benefits at the expense of the other (the host), causing harm to the host.

Front

What kingdom includes ancient bacteria that can live in extreme environments?

Back

Archaea.

Front

Rank the levels of an ecosystem from largest to smallest.

Back

ecosystems > communities > populations > organisms.

Front

What is an ecosystem?

Back

A community of living organisms interacting with their physical environment.

Front

What is an autotroph?

Back

An organism that makes its own food, usually through photosynthesis.

Front

What is a heterotroph?

Back

An organism that cannot make its own food and relies on consuming other organisms for energy.

Front

What is a population?

Back

A group of individuals of the same species living in a specific area.

Front

What is a community in an ecosystem?

Back

All the different populations of organisms that live together in a specific area.

Front

What is the difference between a biotic and abiotic factor?

Back

Biotic factors are living components of an ecosystem, while abiotic factors are non-living components.

Front

What role do decomposers play in an ecosystem?

Back

Decomposers break down dead organic matter, returning nutrients to the soil.