Chapter 3 test

Front

What is the primary source of increased carbon dioxide in the atmosphere?

Back

Burning of fossil fuels.

Front

What effect does adding carbon dioxide to the atmosphere NOT cause?

Back

Less photosynthesis to occur in the producers.

Front

What is one reason for the decrease in the decomposer population?

Back

There was not enough decomposers.

Front

How did the dead matter affect the decomposer population in the biodome?

Back

The dead matter was placed in plastic garbage bags and buried six feet.

Front

What is an organism that can make its own energy storage molecules called?

Back

Producer.

Front

What role do producers play in an ecosystem?

Back

They convert sunlight into energy through photosynthesis.

Front

What is cellular respiration?

Back

The process by which organisms convert glucose and oxygen into energy, carbon dioxide, and water.

Front

What happens to ocean water when carbon dioxide levels increase?

Back

Ocean water becomes more acidic.

Front

What is the relationship between carbon dioxide and global temperatures?

Back

Increased carbon dioxide can lead to an increase in global temperatures.

Front

What are decomposers?

Back

Organisms that break down dead organic material, recycling nutrients back into the ecosystem.