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Aquatic ecosystems and biomes revision

Total questions: 73

Worksheet time: 6hrs 5mins

Name
Class
Date
1.

Which aquatic ecosystem is found where the freshwater rivers meet the ocean?

a)

ocean

b)

estuary

c)

lake

d)

pond

2.

All of the following are examples of freshwater ecosystems EXCEPT ________________.

a)

ponds

b)

Estuaries

c)

lakes

d)

rivers

3.
Organisms in estuaries must be able to survive
a)
frequent dry conditions
b)
high winds
c)
changing salt levels
4.

Pond/Lake Plants

a)

mangrove, sea rush, oioi, jointed rush

b)

water lilies, algae, cattails

c)

mallard duck, crayfish, snapping turtle

d)

coralline algae, phytoplankton

5.

This word is used to describe living parts of an ecosystem

a)

Abiotic

b)

Terrestrial

c)

Aquatic

d)

Biotic

6.

Which of the following best describes turtles, algae, fish and beavers?

a)

Biotic factors found in lakes and ponds

b)

Abiotic factors found in lakes and ponds

c)

Biotic factors found in grasslands

d)

Abiotic factors found in forests

7.

Swamps, marshes, and rivers are all examples of ____________ ecosystems.

a)

Saltwater

b)

Oceans

c)

Freshwater

d)

Tropical Rainforest

8.
Aquatic ecosystem that has a thin layer of water covering soil that is wet most of the time is called ____.
a)
wetland
b)
estuary
c)
lake
d)
puddle
9.
What factors affect aquatic ecosystems? 
a)
Light, salinity, temperature
b)
Sun, moon and stars
c)
Nothing
d)
Coral reefs, whales
10.
Why does photosynthesis not occur in the deep ocean? 
a)
Lack of nutrients
b)
Low oxygen levels
c)
Excess sunlight
d)
Sunlight does not penetrate
11.
Plankton that uses photosynthesis:
a)
Phytoplankton
b)
Zooplankton
12.
An aquatic ecosystem includes any
a)
fish and frogs living there
b)
water environment and the community of organisms living there
c)
water but no animals or plants
13.
The major abiotic factors that influence aquatic ecosystems include
a)
water temperature and amount of light
b)
plants and animals
c)
water and plants growing there
14.
Some organisms that live in lakes include:
a)
sharks
b)
protists
c)
rocks and soil
15.
Wetlands have high species diversity.
a)
false
b)
true
16.
One of the benefits of wetlands, is that they can
a)
replace lakes and ponds
b)
filter pollutants out of water
c)
provides land for housing developments
17.
Organisms in estuaries must be able to survive
a)
frequent dry conditions
b)
high winds
c)
changing salt levels
18.
Salt water is denser than fresh water. What ecosystem is most affected by this fact?
a)
lake
b)
river
c)
stream
d)
estuary
19.
Which is a fresh water ecosystem?
a)
river
b)
estuary
c)
ocean
20.

What are wetlands?

a)

areas of land that are flooded at least part of the year

b)

the ocean

c)

lakes

d)

estuaries

21.

Salinity refers to

a)

how many plants are in the water

b)

how many organisms live in the water

c)

how much salt in is water

22.
Which is NOT example of freshwater ecosystems
a)
Coral Reef
b)
Lake
c)
Pond
d)
Stream
23.
Two factors that determine where an organism lives in aquatic ecosystem are 
a)
Temperature and sunlight
b)
Neighbors and housing prices
c)
Fish and wildlife
d)
Darkness and tree height
24.

What is at the base of the food chain in the ocean?

a)

whales

b)

plankton

c)

turtles

d)

seaweed

25.

Because the waters of the neritic zone are relatively shallow...

a)

It is difficult for algae to access sun

b)

The pounding waves make it hard for organisms to live there

c)

Not a lot of marine life can survive there

d)

Lots of photosynthesis can occur and many things live there

26.

Almost ____% of the earth's surface is covered with water.

a)

100%

b)

75%

c)

50%

d)

35%

27.

Coral reefs can be situated in freshwater ecosystems

a)

true

b)

false

28.

Mangroovers grow in...

a)

freshwater ecosystems

b)

wetlands

c)

estuaries

d)

oceans

29.

Open oceans have 3 zones. Which one is the deepest?

a)

deep zone

b)

sunlit zone

c)

twilight zone

d)

dark zone

30.

This aquatic ecosystem is a ...

a)

estuary

b)

pond

c)

wetland

d)

Open ocean

e)

coral reef

31.

This image belongs to a ...

a)

coral reef

b)

estuary

c)

lake

d)

ocean

32.

____ are shallow and warm.

a)

streams

b)

rivers

c)

ponds

d)

lakes

33.

Which of the following is NOT an aquatic ecosystem?

a)

Marsh

b)

River

c)

Tundra

d)

Swamp

34.

Which of the following is a saltwater ecosystem?

a)

Oceans

b)

River

c)

Ponds

d)

Lakes

35.

Which of the following is NOT a terrestrial ecosystem?

a)

Marsh

b)

Tundra

c)

Taiga

d)

Grassland

36.

Which terrestrial ecosystem is characterized by almost no rainfall, very hot days, and very cold nights?

a)

Tundra

b)

Temperate Forest

c)

Desert

d)

Grassland

37.

Which of the following ecosystems is characterized by flat land, little rainfall, and low growing plants such as grass and wildflowers?

a)

Grassland

b)

Taiga

c)

Tundra

d)

Tropical Rainforest

38.

The swamp is a ___________.

a)

Terrestrial Ecosystem

b)

Aquatic Ecosystem

39.

The tundra is a ___________.

a)

Terrestrial Ecosystem

b)

Aquatic Ecosystem

40.

The desert is a ___________.

a)

Terrestrial Ecosystem

b)

Aquatic Ecosystem

41.

The ocean is a ___________.

a)

Terrestrial Ecosystem

b)

Aquatic Ecosystem

42.

Which of the following ecosystem has a high salinity factor?

a)

River

b)

Ocean

c)

Pond

d)

Lake

43.
This biome has the most diverse species of plants and animals.
a)
desert
b)
tropical rainforest
c)
savanna
d)
tundra
44.
phytoplankton are
a)
tiny autotrophic organisms in water
b)
large plants 
c)
tiny heterotrophic organisms in water
d)
large animals
45.
zooplankton are
a)
tiny autotrophic organisms in water
b)
large plants
c)
tiny heterotrophic organisms in water
d)
large animals
46.
An ecosystem where water covers the soil or water is near the surface of the soil is called
a)
a desert
b)
an ocean
c)
an estuary
d)
a wetland
47.
Which would have kelp forests and coral reefs?
a)
intertidal zone
b)
coastal ocean
c)
open ocean
48.
Which biome has dense evergreen (pine) forests?
a)
taiga (boreal forest)
b)
tundra
c)
desert
d)
savanna
49.

What are the three major types of aquatic ecosystems?

a)

Rivers, Lakes, and Ponds

b)

Marine, Freshwater, and Estuaries

c)

Coral reefs, Oceans, and the Sea

d)

There are only freshwater ecosystems

50.

What is an ecosystem?

a)

An Estuary

b)

A group of organisms of the same species that live in a specific geographical area.

c)

A community of organisms and their abiotic environment.

51.

Aquatic means ______________________.

a)

having to do with water

b)

having to do with land

c)

having to do with air

d)

having to do with heat

52.

Which aquatic ecosystems are bodies of freshwater surrounded by land?

a)

oceans

b)

estuaries

c)

lakes

d)

ponds

53.

Saltwater is the biggest Ecosystem in the world

a)

True because it covers aproximately the 70% of the Earth

b)

False because it covers aproximately the 50% of the Earth

54.

Which biome is characterized by low temperatures and low amounts of rainfall (and other precipitation)?

a)

tundra

b)

desert

c)

temperate deciduous forest

d)

tropical rain forest

55.

Which biome covers most of the land mass near Earth's equator?

a)

tundra

b)

desert

c)

grassland

d)

tropical rainforest

56.

Which biome has the largest number of species of plants and animals (highest biodiversity)?

a)

tundra

b)

desert

c)

tropical rainforest

d)

pine forest

57.
One characteristic feature of tundra is that only the surface thaws in the summer and refreezes in the winter, leaving a layer of permanently frozen subsoil.  This characteristic is known as
a)
glaciation
b)
permafrost
c)
crystallization
d)
soilfrost
58.

Which biome contains large populations of grazing herbivores, few species of birds, and deep, rich soil?

a)

taiga

b)

tundra

c)

deciduous forest

d)

grassland

59.

Which biome has deciduous trees (that lose their leaves in the fall)?

a)

Temperate Forest

b)

Rainforest

c)

Grasslands

d)

Taiga

60.

Which biome has 4 seasons?

a)

Taiga

b)

Tundra

c)

Tropical Rainforest

d)

Temperate Forest

61.

Which biome is home to cacti, scorpions, coyotes, kangaroo rats, and lizards?

a)

Desert

b)

Grasslands

c)

Temperate Forest

d)

Taiga

62.

lichens, mosses, grasses, and other low-growing plants are common vegetation in this biome due to the permafrost, low rainfall, and very cold temperatures.

a)

Desert

b)

Taiga

c)

Tundra

d)

Grasslands

63.

Terrestrial (land) biomes cover roughly how much of the Earth's surface?

a)

10%

b)

25%

c)

50%

d)

75%

64.

A desert is very hot during the day and receives very little rain.

Which plants have an adaptation that would help them survive?

a)

plants with waxy coatings

b)

plants with deep roots

c)

plants with large leaves

d)

plants with soft stems

65.

An organism has thick white fur, a bushy tail, and short ears. It often burrows holes and curls into a ball for warmth. To which biome is this organism most likely adapted?

a)

Grassland

b)

Tundra

c)

Taigia

d)

Desert

66.

What does biological diversity mean?

a)

a lot of rain

b)

rich soil

c)

more kinds of plants and animals

d)

great climate differences

67.

What is the rain-forest canopy?

a)

treetops

b)

vines

c)

tree trunks

d)

ground

68.

What is permafrost?

a)

soil that has thawed

b)

soils that is always frozen

c)

a plant in the tundra

d)

muddy soil

69.

How do swamps differ from marshes?

a)

Swamps are near rivers.

b)

Swamps have many birds.

c)

Swamps are very wet.

d)

Swamps have trees.

70.

Which biome covers most of the land mass near Earth's equator?

a)

tundra

b)

desert

c)

grassland

d)

tropical rain-forest

71.

What can you infer about animals that live in the desert?

a)

Most of them are quite large

b)

Most of them are warm-blooded

c)

Most are unable to withstand temperatures below 90 degrees Fahrenheit

d)

These animals can survive on very little water

72.

What is the main factor that separates the biomes?

a)

Land

b)

Water

c)

Climate

d)

Longitude

73.

Prairies and savannas are two examples of this land biome?

a)

Tundra

b)

Grassland

c)

Desert

d)

Taiga

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