Food Pyramids & Trophic Levels

Front

All food webs and food chains begin with _________________

Back

producers

Front

In an energy pyramid, which organisms have the most energy available?

Back

Producers

Front

In an ecological pyramid, which type of organism always has the least amount of energy available?

Back

Top Predator

Front

As you work your way up the energy pyramid, what happens to the energy?

Back

It decreases

Front

If there are 1500 Kcal of energy available in the producers, how much energy would be available in the primary consumers?

Back

150 Kcal

Front

What is a food pyramid?

Back

A graphical representation of the relationship between different levels of food chains and energy flow in an ecosystem.

Front

Define trophic level.

Back

A trophic level is a position in a food chain or food web, representing the flow of energy and nutrients.

Front

What is the role of primary consumers in a food chain?

Back

Primary consumers are organisms that eat producers; they are herbivores.

Front

What happens to energy as it moves from producers to top predators?

Back

Energy decreases due to energy loss at each trophic level, primarily through metabolic processes.

Front

What is the 10% rule in ecology?

Back

Only about 10% of the energy from one trophic level is transferred to the next level.