Marine and Freshwater Ecosystems Practice Test

What are tiny organisms that float near the surface of the water?

• plankton
• organisms
• abiotic factor
• insects

The deepest parts of the benthic zone do not get any _________.

• sunlight
• food
• fish
• chemicals

Tags

NGSS.MS-LS2-3

An area where fresh water from streams and rivers spills into the ocean is called an _____________.

• plankton
• estuary
• sargassums
• coral reefs

Tags

NGSS.MS-LS2-3

Eutrophic lakes are characterized by...

• low nutrients, low oxygen
• low nutrients, high oxygen
• high nutrients, low oxygen
• high nutrients, high oxygen

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Where would you find cattails and reeds?

• Limnetic zone
• Littoral zone
• Profundal zone
• Benthic zone

Tags

NGSS.MS-LS2-1

An oligotrophic lake would:

• Be cold and oxygen-rich
• Contain summer stratification
• Contain algal blooms
• Be shallow with large biomass

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

What is represented at point 3?

• wave height
• wavelength
• crest
• trough

Tags

NGSS.MS-PS4-1

All organisms that swim actively in open water, independent of currents are called

• Nekton

• Benthos

• Plankton

• Runoff

What is the difference between Point and non-point pollution sources?

• Point (Specific location) Nonpoint (broad, all areas)

• Point pollution is cased by living things, Non point is caused by man made objects

• Point (Broad, all areas) Nonpoint (specific location)

• Point pollution is caused by pointy objects, Non Point pollution is caused by large blunt objects

A technology used by scientists in the mid-1900s to map the mid-ocean ridge. Current used in most boat hulls today for sea navigation and research. 

• sonar
• gps
• radiation
• coriolus effect