Freshwater, Estuaries, and Marine Ecosystems

What is a difference between an ocean ecosystem and a lake ecosystem?

• An ocean ecosystem has less plant life.
• An ocean ecosystem has less animal life.
• Ocean ecosystems have saltwater and lake ecosystems have freshwater.

Which ecosystems has lifeforms most similar to those of the ocean?

• lake 
• pond
• swamp
• estuary

Tags

NGSS.MS-LS2-2

How are a salt water marsh and a lake most similar?

• They are both near an ocean.
• They both have diverse organisms.
• They both have salt water.

Which marine ecosystem would be best for organisms that can adapt to both freshwater and saltwater?

• lake
• pond
• estuary
• river

Which type of ecosystem has the greatest variation in temperature from its top to its bottom?

• lake
• ocean
• pond
• estuary

In which ecosystem would algae and tadpoles most likely be found?

• pond
• ocean
• tide pool
• coral reef

Tags

NGSS.MS-LS2-2

Which ecosystem contains the largest mammals?

• pond
• lake
• swamp
• ocean

Which list animals that live in an aquatic ecosystem?

• black bear, deer, vole
• ducks, turtles, amphibians
• panthers, monkeys, snakes
• prairie dogs, bison, grasshoppers

Which is most accurate in describing and estuary ecosystem?

• High salt levels keep the water clear of nutrients and proteins
• Freshwater mixes with saltwater to provide a nutrient rich environment
• Animals and plants compete for food due to the pollution of nearby areas
• cold water mixes with saltwater to provide a cooling effect that encourages growth

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

Which part of a pond ecosystem give small fish shelter?

• rocks
• frogs
• water
• soil