Food Webs and Ecological Pyramids

Front

What is a consumer?

Back

An organism that gets energy by eating other organisms.

Front

What is a producer?

Back

An organism that can make its own food, typically through photosynthesis.

Front

What is the primary source of energy for all organisms on Earth?

Back

The Sun.

Front

What is a food web?

Back

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

Front

What is an ecological pyramid?

Back

A graphical representation showing the distribution of biomass, numbers, or energy among trophic levels.

Front

What is biomass?

Back

The total mass of living matter in a given area or volume.

Front

What is the role of decomposers in an ecosystem?

Back

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

Front

What happens to the population of prey if the predator population increases?

Back

The prey population may decrease due to increased predation.

Front

What is the relationship between grass and mice?

Back

Grass serves as a producer, while mice are consumers that eat the grass.

Front

What is a trophic level?

Back

Each step in a food chain or food web, representing the flow of energy and nutrients.