Matter and Energy in Ecosystems

Front

What is biomass?

Back

The total mass of organisms in a given area or volume.

Front

What type of ecological pyramid shows the number of organisms at each trophic level?

Back

Pyramid of Numbers.

Front

What are organisms that produce energy-rich compounds from inorganic sources called?

Back

Producers.

Front

What process is represented by the arrow labeled '1' in an ecological diagram?

Back

Photosynthesis.

Front

Which organelle is abundant in cells that require a lot of energy?

Back

Mitochondria.

Front

What is the primary source of energy for producers in an ecosystem?

Back

Sunlight.

Front

What is the role of consumers in an ecosystem?

Back

To obtain energy by consuming other organisms.

Front

What is an example of a primary consumer?

Back

Herbivores, such as rabbits.

Front

What is the difference between a food chain and a food web?

Back

A food chain is a linear sequence of energy transfer, while a food web is a complex network of interconnected food chains.

Front

What is the significance of decomposers in an ecosystem?

Back

They break down dead organic matter, recycling nutrients back into the soil.