Ecology Review

Front

What is commensalism?

Back

A type of symbiosis where one organism benefits and the other is unaffected.

Front

What is parasitism?

Back

A type of symbiosis where one organism benefits at the expense of the other.

Front

What role do decomposers play in the nitrogen cycle?

Back

They break down organic matter, releasing nitrogen into the soil for plants to use.

Front

What is a primary consumer?

Back

An organism that eats producers, such as a rabbit eating grass.

Front

What is the role of bacteria in the nitrogen cycle?

Back

They participate in nitrogen fixation, nitrification, and denitrification.

Front

Define symbiosis.

Back

A close and long-term interaction between two different biological species.

Front

What is nitrogen fixation?

Back

The process of converting nitrogen gas from the atmosphere into ammonia or related compounds in soil.

Front

What is nitrification?

Back

The process by which ammonia is converted into nitrites and then nitrates by bacteria.

Front

What is denitrification?

Back

The process by which nitrates are reduced to nitrogen gas, returning it to the atmosphere.

Front

What is a food chain?

Back

A linear sequence of organisms through which nutrients and energy pass as one organism eats another.