Living Environment Regents practice (2015 regents questions)

Front

What is the role of decomposers in a food chain?

Back

Decomposers return nutrients to the ecosystem by breaking down dead organic matter.

Front

What do all organisms in an ecosystem use energy for?

Back

All organisms use energy to obtain and transport materials, and to eliminate wastes.

Front

What scientific explanation does natural selection provide?

Back

Natural selection provides a scientific explanation for the fossil record of ancient life-forms.

Front

What is active transport in cells?

Back

Active transport is the process that requires energy to move molecules against their concentration gradient into the cell.

Front

What is the desired outcome of using biofuels?

Back

The desired outcome of using biofuels is a decrease in the use of fossil fuels.

Front

Define photosynthesis.

Back

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

Front

What is cellular respiration?

Back

Cellular respiration is the process by which cells convert glucose and oxygen into energy, carbon dioxide, and water.

Front

What is the significance of the fossil record?

Back

The fossil record provides evidence of the history of life on Earth and shows how species have evolved over time.

Front

What is the difference between abiotic and biotic factors?

Back

Abiotic factors are non-living chemical and physical parts of the environment, while biotic factors are the living components.

Front

What is an ecosystem?

Back

An ecosystem is a community of living organisms interacting with their physical environment.