Aquatic Biodiversity

Which term describes the clearness or cloudiness of water?

• Acidity

• pH

• Turbidity

• Hardness

When you go swimming at the beach, which ocean feature are you most likely standing on?

• Abyssal Plain

• Continental Rise

• Mid-Ocean Ridge

• Continental Shelf

Sunlight allows ________________ to occur in the sunlight zone.

• bioluminesence
• transpiration
• photosynthesis
• voting

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

______ zones are on the ocean floor.

• pelagic

• benthic

• littoral

______ are all organisms that swim freely, independent of currents.

• Benthic 
• Zooplankton 
• Nekton 

Most of the Earth's water is in

• salty oceans
• freshwater lakes
• freshwater ponds
• glaciers

Currents are important in marine ecosystems because they redistribute water, heat, nutrients and oxygen about the ocean. How would the flow of a current affect ocean organisms?

• It would affect how much nutrients organisms received. 
• It would affect how much heat and oxygen organisms received.
• It could affect the migration routes of animals insuring their survival from what the current would provide for them. 
• All of the above.

Tags

NGSS.MS-ESS2-6

NGSS.MS-LS2-4

Oceans cover about ______ of the surface of the earth.

• 60%

• 70%

• 80%

• 90%

Whales, eels, dolphin and squid are examples of

• benthos

• nekton

• zooplankton

Anaerobic:

• too much oxygen

• little or no oxygen

• oxygen in water

• lack of energy