Ecosystems and Energy

Front

Another name for a heterotroph is a ___________________.

Back

consumer

Front

Write the chemical equation for photosynthesis (use an equals sign for the arrow).

Back

6CO2 + 6H2O + light energy = C6H12O6 + 6O2

Front

Which of the following represents the raw materials of photosynthesis?

Back

carbon dioxide and water

Front

Choose one food chain in the web. Name all the organisms in that chain. Start with the producer and end with the top-level consumer.

Back

Grass, mouse, hawk.

Front

What is most of the energy converted to as it moves from one trophic level to the next?

Back

Heat

Front

What is a producer in an ecosystem?

Back

An organism that can make its own food through photosynthesis or chemosynthesis.

Front

Define a food chain.

Back

A linear sequence of organisms where each is eaten by the next one in the chain.

Front

What is a trophic level?

Back

Each step in a food chain or food web, representing the flow of energy.

Front

What role do decomposers play in an ecosystem?

Back

They break down dead organisms and recycle nutrients back into the soil.

Front

What is the primary source of energy for most ecosystems?

Back

The Sun.