Fresh & Salt water Systems Checkpoint Seven

Question 1

What is diversity?

Answer 1

The variety of different species in an ecosystem, may also be used to describe variety in a population or species.

Question 2

What are the four lake zones?

Answer 2

1) Littoral Zone (near shore)
2) Limnetic Zone (far from shore)
3) Euphotic Zone (upper layer of water)
4) Profundal Zone (lower layer of water)

Question 3

What are the three ocean zones?

Answer 3

1) Intertidal Zone (near shore)
2) Continental shelf (the “shelf” of land under water)
3) Oceanic Zone (deep ocean)

Question 4

What is an Estuary?

Answer 4

The end of a river where by the fresh water of a river begins to mix with salt water of an ocean. This water is called brackish water- the mix of salt and fresh water.

Question 5

What are Adaptations?

Answer 5

Physical characteristics or behavior of a species that increases the species’ chance of survival in a particular environment.

Question 6

What are the main environmental factors that lead to adaptations?

Answer 6

• temperature
• light
• pressure
• salinity
• water movement