Food webs and relationships within an ecosystem

Front

What is primary succession?

Back

Primary succession is the process of ecological change that occurs in an area where no soil exists, such as after a volcanic eruption. The first organisms to colonize such areas are called pioneer species, like lichens.

Front

What is an example of primary succession?

Back

Lichens living on bare rock after a volcanic eruption.

Front

What is the ecological relationship when one organism benefits and the other is neither helped nor harmed?

Back

This relationship is called commensalism.

Front

What is a consumer in an ecosystem?

Back

A consumer is an organism that needs to eat other organisms to obtain energy.

Front

What sense do owls rely on the most as predators?

Back

Owls rely primarily on their sense of hearing.

Front

What are pioneer species?

Back

Pioneer species are the first organisms to move into a new area during ecological succession.

Front

What is mutualism?

Back

Mutualism is a type of ecological relationship where both organisms benefit from the interaction.

Front

What is parasitism?

Back

Parasitism is a relationship where one organism benefits at the expense of another, harming it.

Front

What is a food web?

Back

A food web is a complex network of feeding relationships among organisms in an ecosystem.

Front

What is the role of producers in an ecosystem?

Back

Producers are organisms that can make their own food, typically through photosynthesis, and form the base of the food web.