Flashcard on Food Webs and Energy Pyramids

Front

What is the primary source of energy in an ecosystem?

Back

The sun

Front

In an energy pyramid, where are the producers located?

Back

At the bottom

Front

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

Back

10%

Front

Why does the energy pyramid get smaller as you move up?

Back

Energy is lost as heat

Front

What happens to the 90% of energy that is not transferred to the next trophic level?

Back

It is lost as heat or used in life processes.

Front

Which organisms receive 100% of their energy from the sun? Options: Consumers, Decomposers, Producers, Predators

Back

Producers

Front

Why are populations of species higher in the pyramid relatively small?

Back

They have less energy available

Front

What is the role of producers in an energy pyramid?

Back

To store energy from the sun

Front

What is the 10% Rule in an energy pyramid?

Back

10% of energy is transferred to the next level

Front

How do organisms use the energy they receive?

Back

For life processes like digesting food or moving