Communities and Ecosystems

Front

What is Parasitism?

Back

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

Front

What are abiotic factors?

Back

The non-living parts of an organism's environment.

Front

Which component of an ecosystem cannot be recycled?

Back

Energy.

Front

How do saprotrophs obtain their energy?

Back

By externally digesting deceased organisms.

Front

Why might an organism have more than one arrow coming from them in a food web?

Back

More than one organism may eat them.

Front

What is symbiosis?

Back

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

Front

Define mutualism.

Back

A type of symbiosis where both organisms benefit from the relationship.

Front

What are biotic factors?

Back

The living parts of an organism's environment.

Front

What is a food web?

Back

A complex network of feeding relationships among organisms in an ecosystem.

Front

What role do decomposers play in an ecosystem?

Back

They break down dead organic material, returning nutrients to the soil.