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 happens to organisms if the original source of energy (the sun) is removed?

Back

All organisms would die because there would be no new energy.

Front

How much biomass is needed to support a hawk that weighs 1.5 kg?

Back

1,500 kg of leaves must be consumed by grasshoppers to support one hawk.

Front

What is the role of producers in an ecosystem?

Back

Producers, like plants, convert sunlight into energy, forming the base of the food chain.

Front

What is a food chain?

Back

A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another.

Front

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

Back

Having more producers ensures that there is enough energy available to support the higher trophic levels.

Front

What is the relationship between grasshoppers, frogs, and hawks in an ecosystem?

Back

Grasshoppers are primary consumers that eat plants, frogs are secondary consumers that eat grasshoppers, and hawks are tertiary consumers that eat frogs.

Front

What is the energy transfer efficiency between trophic levels?

Back

Typically, only about 10% of the energy is transferred from one trophic level to the next.

Front

What is the importance of leaves in the food chain involving grasshoppers and hawks?

Back

Leaves are essential as they are the primary source of energy for grasshoppers, which in turn support the entire food chain.

Front

How many grams of algae are needed to support 10 grams of brine fly biomass?

Back

100 grams of algae biomass are needed to support 10 grams of brine fly biomass.