Energy Pyramids

Front

What is an energy pyramid?

Back

An energy pyramid is a graphical representation that shows the flow of energy through different trophic levels in an ecosystem, illustrating how energy decreases as it moves from producers to various levels of consumers.

Front

What are producers in an ecosystem?

Back

Producers are organisms, typically plants, that can make their own food through photosynthesis, using sunlight, water, and carbon dioxide.

Front

What is a herbivore?

Back

A herbivore is an animal that primarily eats plants and plant-based materials.

Front

What percentage of energy is typically passed from one trophic level to the next?

Back

Typically, only about 10% of the energy is passed from one trophic level to the next in an energy pyramid.

Front

What is a primary consumer?

Back

A primary consumer is an organism that eats producers; they are usually herbivores.

Front

What is a secondary consumer?

Back

A secondary consumer is an organism that eats primary consumers; they can be carnivores or omnivores.

Front

What is the role of decomposers in an ecosystem?

Back

Decomposers break down dead organic matter, returning nutrients to the soil and making them available for producers.

Front

What is the difference between autotrophs and heterotrophs?

Back

Autotrophs are organisms that produce their own food (like plants), while heterotrophs are organisms that consume other organisms for energy.

Front

What is the significance of the 10% rule in energy transfer?

Back

The 10% rule indicates that only about 10% of the energy from one trophic level is available to the next level, which limits the number of trophic levels in an ecosystem.

Front

What is a food chain?

Back

A food chain is a linear sequence that shows how energy and nutrients flow from one organism to another in an ecosystem.