Pop & Eco Investigation 6 Test

Front

What is a biomass pyramid?

Back

A biomass pyramid is a graphical representation that shows the relative amount of biomass at each trophic level in an ecosystem.

Front

What does trophic level mean?

Back

Trophic level refers to the position an organism occupies in a food chain, which is determined by its feeding relationships.

Front

What is the primary producer in a food chain?

Back

The primary producer is typically a plant or photosynthetic organism that converts sunlight into energy through photosynthesis.

Front

What is a top predator?

Back

A top predator is an organism that is at the top of the food chain and has no natural predators.

Front

How does energy transfer between trophic levels?

Back

Energy transfer between trophic levels is inefficient; only a small fraction of energy (about 10%) is passed on to the next level.

Front

What is the role of primary consumers?

Back

Primary consumers are herbivores that eat primary producers (plants) and convert the energy stored in them into biomass.

Front

What is the significance of having more producers than consumers in an ecosystem?

Back

Having more producers than consumers ensures a stable food supply and supports the energy needs of the entire ecosystem.

Front

What is the difference between biomass and energy in an ecosystem?

Back

Biomass refers to the total mass of living organisms at a trophic level, while energy refers to the capacity to do work, which is transferred through food chains.

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.

Front

What is the energy pyramid model?

Back

The energy pyramid model illustrates the amount of energy available at each trophic level, showing that energy decreases as it moves up the pyramid.