CD Unit 3 Honors Biology Review

Front

What happens to sea ice as temperatures rise if less sunlight is reflected?

Back

It melts.

Front

Which component is most critical for the carbon cycle to continue?

Back

Decomposers.

Front

What gas is NOT classified as a greenhouse gas?

Back

Oxygen.

Front

What happens to energy that is not passed to the next trophic level?

Back

Eliminated as heat.

Front

Why are lawmakers focused on reducing chlorofluorocarbon (CFC) emissions?

Back

CFCs remain in the atmosphere longer than other gases.

Front

What is the role of decomposers in the ecosystem?

Back

Decomposers break down dead organic matter, returning nutrients to the soil.

Front

Define greenhouse gases.

Back

Greenhouse gases are gases that trap heat in the atmosphere, contributing to the greenhouse effect.

Front

What is the greenhouse effect?

Back

The greenhouse effect is the warming of Earth's surface due to the trapping of heat by greenhouse gases.

Front

Explain the carbon cycle.

Back

The carbon cycle is the process by which carbon is exchanged among the atmosphere, land, water, and living organisms.

Front

What is the significance of trophic levels in an ecosystem?

Back

Trophic levels represent the different stages in a food chain, indicating the flow of energy and nutrients.