Energy flow

Front

What percentage of energy is lost as heat or used by organisms at each trophic level?

Back

90%

Front

What do you call organisms that create their own energy from sunlight or chemicals?

Back

Autotroph

Front

In the energy flow, what is the term for an organism that eats a producer?

Back

Primary Consumer

Front

What shape is used to represent trophic levels in an energy pyramid?

Back

Pyramids

Front

Which group of organisms provides the most energy in an ecosystem?

Back

Producers

Front

What is the role of producers in an ecosystem?

Back

Producers convert sunlight or chemicals into energy through photosynthesis or chemosynthesis.

Front

Define 'trophic level'.

Back

A trophic level is a position in a food chain or energy pyramid that indicates the flow of energy through an ecosystem.

Front

What is the difference between autotrophs and heterotrophs?

Back

Autotrophs produce their own energy, while heterotrophs consume other organisms for energy.

Front

Give an example of a primary consumer in an ecosystem.

Back

A rabbit is a primary consumer as it eats plants.

Front

What is the significance of energy loss at each trophic level?

Back

Energy loss limits the number of trophic levels in an ecosystem and affects population sizes.