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Bays and estuaries

Total questions: 29

Worksheet time: 15mins

Name
Class
Date
1.

What causes tides?

a)

Gravity

b)

Dihydrogen monoxide

c)

Solid aquatic Material

d)

The outer planets

2.

What is the main marine adaptation that allows organisms to survive freezing water temperatures?

a)

Some have a type of antifreeze in their blood, which lowers the freezing point of their internal fluids

b)

decrease the salt content with their tissues to prevent freezing

c)

Growing a fur coat

d)

Swimming to a tropical waters

3.

Zonation in tidal zones is the result of all the following except:

a)

alternation between submersion and exposure to air

b)

competition and perdation

c)

grazing-affects algal distribution

d)

run and hide method

4.

High stress for sessile organisms due to exposure of the elements is cause by all of the following except:

a)

Desiccation - drying out

b)

Predation

c)

Temperature and Salinity changes

d)

Floods

5.

Barnacles and Mussels are found in the

a)

Middle Intertidal or Littoral zone

b)

Lower Intertidal or Infralittoral zone

c)

Upper intertidal or Supralittoral zone

d)

Supralittoral zone or Littoral zone

6.

Substrate materials for aquatic animals are all of the following except:

a)

Rocks

b)

mud

c)

Sand

d)

Seaweed

7.

The term turbulence refers to

a)

wave action

b)

calm seas

c)

self-destruct

d)

hurricane winds

8.

Desiccation is the process of

a)

drying out

b)

floating on the surface of water

c)

taking in water

d)

changing color

9.

What does the word sessile mean?

a)

attached and stays in place

b)

to die off

c)

moves with tide

d)

is motile

10.

What is the main causes of Zonation?

a)

Biological Factors

b)

Physical Factors

c)

Terrestrial Factors

d)

Astronomical Factors

11.

What is an example of a types of tidal zones?

a)

Sandy Beach

b)

Playa Lakes

c)

Swampy Marsh

d)

Coastal Plain

12.

Coastal plains are deeper than Bar-built bays or lagoons

a)

True

b)

False

13.

The estuary with the highest walls are usually

a)

Fjords

b)

Coastal Plain

c)

Tectonic

d)

Bar-built

14.

The deepest estuaries are

a)

Tectonic

b)

Coastal Plains

c)

Fjords

d)

Bar-built

15.

Freshwater species have the ability to survive in waters with less than a 10% concentration of salt in the water.

a)

True

b)

False

16.

The salt concentration in an estuary decreases as you head towards the river.

a)

True

b)

False

17.

The greatest challenge of estuary organisms is maintaining a water and salt balance in cells and bodily fluids.

a)

True

b)

False

18.

The ‘Z’ shaped leading edge where freshwater and saltwater meets is called

a)

Salt wedge

b)

Halocline

c)

Euryhaline

d)

Stenohaline

19.

Which of the following is not related to a Bar-built estuary?

a)

are also called lagoons

b)

are also called bays

c)

are found on the Texas Coast

d)

are only found in Canada

20.

An area partially enclosed body of water where freshwater mixes with saltwater is called a(n)

a)

Estuary

b)

Bay

c)

Marsh

d)

Valley

21.

The salinity concentration of ocean water is .35%.

a)

True

b)

False

22.

A salty gradient where two water masses meet is called a halocline.

a)

True

b)

False

23.

Tectonic estuary were developed by

a)

Faulting of land surfaces along major faults.

b)

Rising sea-levels filling existing river valleys.

c)

Glacial movement

d)

Ocean water pushing sand into piles,

24.

Brackish water are areas where freshwater combines with ocean waters.

a)

True

b)

False

25.

Salt water will float on top of freshwater due to saltwater's greater density.

a)

True

b)

False

26.

Organisms can only endure a narrow range of salinity are called

a)

Stenohaline Marine Species

b)

Euryhaline Marine Species

c)

Freshwater Species

d)

Brackish Water Species

27.

This is caused when a sandbar traps fresh water and mixes it with ocean water.

a)

Lagoons/Bays

b)

Coastal Plains

c)

Fjords

d)

Tectonic Bays

28.

This type of estuary is formed by glaciers

a)

Fjords

b)

Coastal Plains

c)

Lagoons

d)

Tectonic Bays

29.

The San Francisco Bay are this type of transitional environment

a)

Tectonic Bays

b)

Lagoons

c)

Coastal Plains

d)

Fjords