Marine Science - Final Exam Study Guide - Units 1-3

Front

What is the difference between an ROV and an AUV?

Back

ROV (Remotely Operated Vehicle) is tethered to a ship and controlled by humans, while AUV (Autonomous Underwater Vehicle) is autonomous and not tethered.

Front

What trophic level do organisms that produce their own food belong to?

Back

Primary producer.

Front

What is the main component of terrigenous marine sediment?

Back

Clay.

Front

What does a refractometer measure?

Back

Refractive index.

Front

What causes the density of seawater to increase?

Back

An increase in salinity.

Front

Define 'marine sediment'.

Back

Particles of organic or inorganic matter that accumulate in marine environments.

Front

What is the role of primary producers in marine ecosystems?

Back

They convert sunlight or chemical energy into organic matter, forming the base of the food web.

Front

Explain the term 'salinity'.

Back

The concentration of salts in water, typically measured in parts per thousand (ppt).

Front

What is the significance of the thermocline in oceanography?

Back

It is a layer in the ocean where temperature changes rapidly with depth, affecting marine life and water circulation.

Front

Define 'biodiversity' in marine contexts.

Back

The variety of life forms in marine ecosystems, including species diversity, genetic diversity, and ecosystem diversity.