Matter and Energy in Ecosystems Chapter 3

Front

What are fossil fuels?

Back

Fossil fuels are natural substances formed from the remains of dead plants and animals that have been buried underground for millions of years. They include coal, oil, and natural gas.

Front

Which of the following is NOT a fossil fuel?

Back

Glass.

Front

Where do fossil fuels come from?

Back

Fossil fuels come from dead matter buried underground for millions of years.

Front

What is the law of conservation of mass in relation to carbon?

Back

Carbon cannot be created nor destroyed; it is recycled in ecosystems.

Front

What happens to the decomposer population when there are not enough decomposers?

Back

The decomposer population decreases, leading to an imbalance in the ecosystem.

Front

What is a biodome?

Back

A closed ecosystem made by humans for research purposes.

Front

What role do decomposers play in an ecosystem?

Back

Decomposers break down dead organic matter, returning nutrients to the soil and supporting plant growth.

Front

What is the primary source of energy for ecosystems?

Back

The primary source of energy for ecosystems is the sun, which is captured by producers through photosynthesis.

Front

What are producers in an ecosystem?

Back

Producers are organisms, like plants, that create their own food through photosynthesis and serve as a food source for consumers.

Front

What are consumers in an ecosystem?

Back

Consumers are organisms that cannot produce their own food and rely on eating other organisms for energy.