Living Environment Regents Review

Front

What is an ecosystem?

Back

An ecosystem includes all living (biotic) and non-living (abiotic) things in an environment, interacting with one another.

Front

What cellular structures are responsible for energy release in cells?

Back

Mitochondria are the energy-releasing structures in cells.

Front

What process has led to the development of larger corn with more kernels over time?

Back

Selective breeding is the process responsible for the changes in corn size and kernel number.

Front

What happens to pulse rates during exercise?

Back

Pulse rates increase with exercise, indicating higher heart activity.

Front

Which of the following is an inorganic molecule?

Back

Water is an inorganic molecule.

Front

Define 'selective breeding'.

Back

Selective breeding is the process of breeding plants and animals for specific genetic traits.

Front

What is the role of mitochondria in cells?

Back

Mitochondria produce energy through cellular respiration.

Front

Explain the term 'abiotic factors'.

Back

Abiotic factors are the non-living components of an ecosystem, such as water, sunlight, and minerals.

Front

What is the significance of pulse rate in physical activity?

Back

Pulse rate is an indicator of heart rate and cardiovascular fitness during physical activity.

Front

What is the difference between a population and an ecosystem?

Back

A population consists of individuals of the same species in a specific area, while an ecosystem includes all living and non-living things in that area.