5 Written questions
5 Matching questions
- Pack Ice
- Sublittoral Zone
- a A layer in a body of water in which water temperature drops with increased depth faster than it does in other layers.
- b The shallow benthic zone that most organisms live in; located on the continental shelves and is populated by organisms such as sea stars, brittle stars, and sea lilies.
- c All organisms that swim actively in open water, independent of currents
- d Microscopic plants in the ocean that provide food to many of the ocean's organisms.
- e A floating layer of sea ice that completely covers an area of the ocean surface.
5 Multiple choice questions
- The bottom region of oceans and bodies of fresh water.
- Begins at the continental slope and extends to a depth of 4,000 meters.
animals that live there: octopi, sea stars, and brachiopods.
- The region of an ocean or body of fresh water above the benthic zone.
- A method of desalination where water is frozen. Then the first ice crystals that form do not contain salt. The ice can be removed and melted to obtain fresh water.
- Extends into the deep waters beyond the continental shelf.
5 True/False questions
Intertidal Zone → The shallowest benthic zone that lies between the low-tide and high-tide lines.
Plankton → The mass of mostly microscopic organisms that float or drift freely in the waters of aquatic (freshwater and marine) environments.
Benthos → Organisms that live at the bottom of oceans or bodies of fresh water.
Upwelling → A method of desalination where water is frozen. Then the first ice crystals that form do not contain salt. The ice can be removed and melted to obtain fresh water.
Salinity → The ratio of the mass of a substance to the volume of the substance; commonly expressed as grams per cubic centimeter for solids and liquids and as grams per liter for gases.