Aquatic Biomes

What is the salinity level of ocean water?

• 0.5 ppt

• 35 ppt

• 50 ppt

• 5 ppt

How is salinity measured in aquatic systems?

• Parts per million

• Grams per liter

• Parts per thousand

• Milligrams per liter

What is the typical salinity range for freshwater?

• Less than 0.5 ppt

• 35 ppt

• 30-50 ppt

• Between 0.5 & 30 ppt

What is the MAIN factor that limits LIGHT availability in aquatic ecosystems?

• Temperature

• Depth of water

• Salinity

• Water current

Tags

NGSS.MS-LS1-6

Which zone in a body of water is closest to the shore and often supports a variety of plant life?

• Limnetic zone

• Littoral zone

• Aphotic zone

• Benthic zone

In which zone does sunlight penetrate, allowing photosynthesis to occur?

• Aphotic zone

• Benthic zone

• Photic zone

• Limnetic zone

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What are bodies of open standing water that collect in depressions on Earth's surface called?

• Rivers

• Oceans

• Ponds, Lakes, & Inland Seas

• Streams

How are ponds and lakes different?

• Ponds are generally bigger than lakes

• Lakes are generally bigger than ponds

• Ponds and lakes are the same size

• Lakes are smaller than ponds

What are very large lakes also known as?

• Oceans

• Rivers

• Inland seas

• Streams

What is an example of an inland sea?

• Pacific Ocean

• Lake Superior

• Amazon River

• Mediterranean Sea