Grade 7 Energy Flow

Front

What is the efficiency of energy transfer from a lower trophic level to the next highest level?

Back

Roughly 10%.

Front

What is the bottom level of the energy pyramid composed of?

Back

Producers.

Front

What is a Food Web?

Back

A complex network of feeding relationships among organisms in an ecosystem.

Front

What are autotrophs?

Back

Organisms that produce their own food, such as plants.

Front

What is a Producer in a food chain?

Back

An organism that can make its own food, typically plants.

Front

What role do First-Level Consumers play in an ecosystem?

Back

They eat producers and are the second level in the energy pyramid.

Front

What is a Food Chain?

Back

A linear sequence of organisms through which nutrients and energy pass.

Front

What are examples of abiotic factors in an ecosystem?

Back

Non-living components like sunlight, water, and minerals.

Front

What is the primary source of energy for most ecosystems?

Back

The Sun.

Front

How do decomposers fit into the energy flow of an ecosystem?

Back

They break down dead organisms, returning nutrients to the soil.