Final Review

Front

What is the function of a cell wall?

Back

To protect and support the cell.

Front

What is a food web?

Back

An illustration that uses arrows to show the many possible directions in which matter and energy can pass through the organisms in an ecosystem.

Front

Which of the following is a producer?

Back

Grass.

Front

What is a recessive allele?

Back

An allele whose trait only shows up when no dominant allele is present.

Front

What are the functions of the respiratory system?

Back

The respiratory system moves oxygen from the outside environment into the body; it also removes carbon dioxide and water from the body.

Front

What is the role of producers in an ecosystem?

Back

Producers create energy through photosynthesis, forming the base of the food chain.

Front

Define photosynthesis.

Back

The process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.

Front

What is an ecosystem?

Back

A community of living organisms interacting with their environment.

Front

What is the difference between a food chain and a food web?

Back

A food chain shows a single pathway of energy flow, while a food web shows multiple interconnected pathways.

Front

What is the role of decomposers in an ecosystem?

Back

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