GB2425S1 Unit 3 Test Make-up

Front

What is biomass?

Back

The total amount of living tissue within a given trophic level.

Front

What do you call animals that eat both producers and consumers?

Back

Omnivores.

Front

Which group is the most efficient in obtaining energy according to the 10% rule?

Back

Producers.

Front

Where do animals get nitrogen from and in what form?

Back

From organisms as amino acids.

Front

What happens to the grass population if the mice are removed from the food chain?

Back

They would decrease because of the increase of primary consumers.

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 are producers?

Back

Organisms that produce their own food through photosynthesis, such as plants.

Front

What are primary consumers?

Back

Herbivores that eat producers.

Front

What role do decomposers play in an ecosystem?

Back

They break down dead organic matter, recycling nutrients back into the soil.

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.