Ecology: Ecosystems, Cycle of Matter

Front

What are interconnected food chains called?

Back

Food web

Front

Where is free nitrogen fixed?

Back

In the nodules on the roots

Front

What is the branch of biology that deals with the relations of organisms to one another and to their physical surroundings?

Back

Ecology

Front

When is a substance called a limiting nutrient?

Back

When the nutrient is scarce or cycles very slowly

Front

What describes a decomposer?

Back

An organism that breaks down dead matter

Front

What is an ecosystem?

Back

A community of living organisms interacting with their physical environment.

Front

What is the role of producers in an ecosystem?

Back

Producers convert sunlight into energy through photosynthesis.

Front

What is the water cycle?

Back

The continuous movement of water through evaporation, condensation, and precipitation.

Front

What is biodiversity?

Back

The variety of life in a particular habitat or ecosystem.

Front

What is a trophic level?

Back

A position in a food chain or food web, representing the flow of energy.