Food Webs & Ecological Pyramids Review

Front

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

Back

90%

Front

What is the base level of all ecological pyramids?

Back

Producers

Front

What distinguishes an energy pyramid from a food web or chain?

Back

It shows the amount of energy in each trophic level.

Front

In an ecological pyramid, which type of consumer receives only 10% of the energy stored in plants?

Back

Herbivore

Front

What are the primary producers in an ecosystem?

Back

Plants, which convert sunlight into energy through photosynthesis.

Front

What is a trophic level?

Back

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

Front

What role do herbivores play in an ecological pyramid?

Back

Herbivores are primary consumers that eat producers and transfer energy to the next trophic level.

Front

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

Back

Only about 10% of the energy from one trophic level is passed to the next level, while the rest is lost as heat.

Front

What are secondary consumers in an ecological pyramid?

Back

Secondary consumers are organisms that eat primary consumers (herbivores) and are typically carnivores.

Front

How do ecological pyramids illustrate energy flow in an ecosystem?

Back

Ecological pyramids visually represent the distribution of energy among different trophic levels.