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Ecosystem review

Total questions: 76

Worksheet time: 2hrs 48mins

Name
Class
Date
1.
Cattle egrets forage (feed) in fields among cattle. The egret gets easy access to flying insects stirred up by the cattle, and the cattle don't care if they are there or not.
a)
mutualism
b)
commensalism
c)
competition
d)
parasitism
2.
A relationship between two organisms in which one organism benefits and the other is unharmed...
a)
Mutualism 
b)
Competition
c)
Parasitsm 
d)
Commensalism 
3.

A tapeworm lives in the intestine of a cat absorbing nutrients through its skin. A tapeworm and a cat have this type of relationship.

a)

mutualism

b)

parasitism

c)

commensalism

d)

competition

4.
What type of symbiosis?  Hummingbirds feed on nectar from flowers.  The flowers are pollinated by hummingbirds as they move from flower to flower.
a)
commensalism
b)
mutualism
c)
parasitism
d)
predation
5.
What type of symbiosis?  Skunks often live in burrows that have been dug and abandoned by woodchucks.  
a)
commensalism
b)
mutualism
c)
parasitism
d)
predation
6.
A relationship between two organisms in which both organisms benefit. 
a)
Mutualism 
b)
Competition
c)
Parasitsm 
d)
Commensalism 
7.
When a mosquito bites you, you are the __________ and the mosquito is the  ____________.
a)
host, hostess
b)
parasite, host
c)
host, parasite
d)
prey, predator
8.

Mockingbirds will push the eggs out of a blue bird's nest and use the nest for it's own babies illustrating...

a)

commensalism

b)

parasitism

c)

mutualism

d)

predation

9.

Clown fish live among anemones, acting as a lure for the sea anemone's prey. The clown fish get protection and shelter from the anemone. This is an example of which type of symbiosis?

a)

Commensalism

b)

Mutualism

c)

Parasitism

10.

A bee and a flower work together to benefit each other. This is an example of a ______. The bee helps the flower by pollinating it and the flower helps the bee by providing it with nectar.

a)

commensalistic relationship

b)

parasitic relationship

c)

mutualistic relationship

11.
Which of he following interactions demonstrates a PARASITIC relationship?
a)
A mosquito sucking blood from a warm blooded animal.
b)
A group of baby otters floating together to help warm each other in the cold waters.
c)
Many fish swimming together to protect each other from predators.
d)
Two hyenas fighting over a female to mate with.
12.
A bird makes a nest in a tree.  The bird gets a house, but the tree is unharmed.
a)
Commensalism
b)
Mutualism
c)
Parasitism
13.
Birds eat the flies off of a rhino's back in the savannah
a)
commensalism
b)
Mutualism
c)
parasitism
14.

What are the living and nonliving things in an environment or area?

a)

predator

b)

producer

c)

ecosystem

d)

abiotic factor

15.

An organism that can make its own food

a)

decomposer

b)

producer

c)

consumer

16.

Breaks down and feeds on the remains of other organisms

a)

decomposer

b)

consumer

c)

producer

17.

Small consumers that are hunted and eaten by larger consumers

a)

producer

b)

prey

c)

predator

18.

Interacting food chains found in an ecosystem

a)

food web

b)

food chain

c)

predator

19.

An animal that hunts and eats other animals for energy

a)

prey

b)

predator

c)

decomposer

20.

These organisms cannot make their own food; they must eat something for energy

a)

decomposer

b)

consumer

c)

producer

21.

NON-living things found in an ecosystem

a)

biotic

b)

abiotc

c)

habitat

22.

LIVING things in an ecosystem

a)

biotic

b)

abiotic

c)

ecosystem

23.

Choose the producer.

a)

rock

b)

tree

c)

cow

d)

bird

24.

Choose the decomposer.

a)

grass

b)

elephant

c)

bacteria

d)

bird

25.

Choose the consumer.

a)

mushroom

b)

horse

c)

tree

d)

grass

26.

Choose the abiotic factor.

a)

sunflower

b)

dog

c)

cat

d)

table

27.

Where does the food chain START?

a)

with consumers that eat grass

b)

with the sun giving energy to producers

c)

with the sun giving energy to consumers

d)

with consumers eating other consumers

28.

A decomposer is also a producer.

a)

True

b)

False

29.

Which of the following are factors that could cause extinction?

a)

Destruction of animals' habitat

b)

Climate change

c)

Pollution

d)

Increased human population (more people)

e)

ALL of the above could cause extinction

30.

What is scarcity and how could it affect an ecosystem?

a)

Too many animals or plants in an area can cause the ecosystem to fail.

b)

Too many animals or plants in an area can cause the animals to be too fat.

c)

Too few animals or plants in an area can cause other animals to go hungry or die.

d)

Too few animals or plants in an area can cause pollution.

31.

Which of these living things is a producer?

a)

horse

b)

cow

c)

fly

d)

grass

32.

Mice and grasshoppers are examples of prey.

a)

True

b)

False

33.

Explain the flow of energy in this food chain (who passes energy to who).

a)

The hawk gives energy to the snake. The snake gives energy to the mouse. The mouse gives energy to the grasshopper who gives energy to the grass.

b)

The mouse gives energy to the hawk. The snake gives energy to the grasshopper. The grass gives energy to the snake.

c)

The grass gives energy to the grasshopper. The grasshopper gives energy to the mouse. The mouse gives energy to the snake who gives energy to the hawk.

34.
What does the picture show?
a)
A Food Web
b)
An Ecosystem
c)
A Food Chain
d)
A nice scenery
35.

Where does the food chain START?

a)

with consumers that eat grass

b)

with the sun giving energy to producers

c)

with the sun giving energy to consumers

d)

with consumers eating other consumers

36.

Which of the following are factors that could cause extinction?

a)

Destruction of animals' habitat

b)

Climate change

c)

Pollution

d)

Increased human population (more people)

e)

ALL of the above could cause extinction

37.

Breaks down and feeds on the remains of other organisms

a)

decomposer

b)

consumer

c)

producer

38.

Which is not an element of biodiversity?

a)

Ecosystem diversity

b)

Species diversity

c)

Genetic diversity

d)

Habitat diversity

39.

An oak tree is a/an...

a)

Producer

b)

Primary Consumer

c)

Secondary Consumer

d)

Decomposer

40.

Biomes have which of the following in common? (You can choose more than one)

a)

Plants

b)

Animals

c)

Climate

d)

Terrain

41.

Which symbiotic relationship is when one organism benefits and the other is not impacted (positively or negatively)?

a)

Predation

b)

Mutualism

c)

Commensalism

d)

Parasitism

42.

Which of the following is not part of the classification community?

a)

Fox

b)

Tree

c)

Sun

d)

Bear

43.
An individual living thing is a/an __________.
a)
habitat
b)
ecosystem
c)
organism
d)
population
44.
The place where an organism lives is its _________.
a)
habitat
b)
abiotic
c)
ecosystem
d)
community
45.
All of the nonliving parts of an ecosystem are _______.
a)
biography
b)
biotic
c)
abiotic
d)
biology
46.
All of the living and nonliving things in an area that interact with each other are called a/an ______.
a)
community
b)
habitat
c)
population
d)
ecosystem
47.
Temperature, light, air, water, and soil are all  _____  parts of the environment
a)
alive
b)
biotic 
c)
abiotic
d)
living
48.
A group of bunnies living in the forest is an example of a __________.
a)
Population
b)
Ecosystem
c)
Individual
d)
Community
49.
A bird hitches a free, safe ride on the back of a grey elephant. The elephant doesn't seem to mind and barely notices the bird. Which type of relationship is this?
a)
mutualism
b)
commensalism
c)
parasitism
50.
Carnivores, herbivores, omnivores, and scavengers are all examples of __________.
a)
producers
b)
consumers
c)
decomposers
d)
abiotic factors
51.
A bird in a tree watched as a lion stalked, attacked, and then ate a zebra. Which of these animals was the prey?
a)
bird
b)
lion
c)
zebra
d)
all of the above
52.
A relationship where one organism benefits and one organism is harmed is called __________.
a)
mutualism
b)
commensalism
c)
parasitism
53.
A relationship where both organisms benefit is called __________.
a)
mutualism
b)
commensalism
c)
parasitism
54.

What role do bobcats play in a forest food web?

a)

Bobcats break down dead plants and animals and return nutrients to the soil

b)

Bobcats are consumers of marmots and grouses

c)

Bobcats produce their own energy

d)

Bobcats are predators of grasses and berries

55.

A wetlands food chain is shown, which table show the correct role of each organism?

a)
b)
c)
d)
56.

Which type of organism is missing from this food web?

a)

Decomposer

b)

Predator

c)

Consumer

d)

Producer

57.

How many types of organisms in this food web obtain energy directly from producers?

a)

One

b)

Two

c)

Three

d)

Four

58.

What role do turkeys play in this food web?

a)

Decomposer

b)

Predator

c)

Consumer

d)

Producer

59.

Which table shows the correct role of organisms in the food web?

a)
b)
c)
d)
60.

In this food web, energy is transferred directly between--

a)

mosquitoes and mudskippers

b)

kingfishers and mangrove crabs

c)

prawns and mosquito larvae

d)

kingfishers and mangrove trees

61.

Based on the information in the food web, which of the following food chains shows one way energy flows in this ecosystem?

a)
b)
c)
d)
62.

which statement correctly describes the transfer of energy in a food chain in this ecosystem?

a)

energy is transferred from berries to bears to elk

b)

energy is transferred from grasses to marmots to bobcats

c)

energy is transferred from bobcats to grouses to grasses

d)

energy is transferred from grasses to elk to grouses

63.

Based on the information in the table, which of the following food chains shows one way energy flows in this ecosystem?

a)
b)
c)
d)
64.

Which organisms in this food web only eats producers?

a)

Fruit bats and bandicoots only

b)

insects and fruit bats

c)

rufous owls, bandicoots and pythons only

d)

insects only

65.

Which organisms in this food web eat only consumers?

a)

spider monkey and butterfly only

b)

spider, poison dart frog and butterfly only

c)

jaguar, carcara, spider and poison dart frog only

d)

poison dart frog and jaguar only

66.

Which change would most likely occur if all the producers in this ecosystem were removed?

a)

The populations of consumers would increase

b)

the producers would move to a new location

c)

to populations of consumers would decrease

d)

Pacus would become producers.

67.

Which organisms do not directly consume another organism for energy?

a)

Ravens and Quails

b)

Kangaroo rats and crickets

c)

cacti and seeds

d)

gila monsters and desert tortoises

68.

People are part of food chains. What is the role of people in a food chain?

a)

Carnivore

b)

Consumer

c)

Decomposer

d)

Producer

69.

At each level of an energy pyramid, most of the energy received from the lower level is used for life processes. Only a little is stored and can be passed up to the next level. Which of the following statements is correct?

a)

One snake can feed many hawks

b)

Hawks should eat grass to obtain the most energy

c)

There must be the same number of plants as animals

d)

Producers are the most numerous group of organisms

70.

Which of these is a first level consumer?

a)

A bush

b)

A cat

c)

A deer

d)

A fox

71.

What does a food web show?

a)

How predators catch prey

b)

What food organisms eat

c)

Why organisms find food

d)

When organisms seek food

72.

Which kind of diagram shows how much energy passes along as one organism consumes another?

a)

Carbon Dioxide-Oxygen Cycle

b)

Energy Pyramid

c)

Food Chain

d)

Food Web

73.

Which of these shows the flow of energy in a food chain?

a)

Consumer --> Plants --> Producers

b)

Sun --> Consumers --> Producers

c)

Producers --> Predators --> Consumers

d)

Producers --> Consumers--> Decomposers

74.

Which type of consumer eats only plants?

a)

Producer

b)

Herbivore

c)

Carnivore

d)

Omnivore

75.

Which type of consumer eats only animals?

a)

Producer

b)

Herbivore

c)

Carnivore

d)

Omnivore

76.

Which type of consumer eats both plants and animals?

a)

Producer

b)

Herbivore

c)

Carnivore

d)

Omnivore

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