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Populations and Ecosystems 1-3

Total questions: 127

Worksheet time: 3hrs 22mins

Name
Class
Date
1.

The benefits humans receive from ecosystems.

a)

Ecosystem Services

b)

Natural Resource

c)

Conservation

d)

Sustainability

2.

An interaction in which one organism kills another for food or nutrients

a)

Predation

b)

Prey

c)

Competition

d)

Niche

3.

How an organism makes its living and interacts with the biotic and abiotic factors in its habitat

a)

Predation

b)

Prey

c)

Competition

d)

Niche

4.

An animal that is hunted and killed by another for food

a)

Predation

b)

Prey

c)

Competition

d)

Niche

5.
Environments include both _____ and _____ things.
a)
resources; factors
b)
air; water
c)
living; nonliving
d)
buildings; animals
6.
For populations to continue to survive, some organisms in the population must _________.
a)
grow
b)
reproduce
c)
eat
d)
die
7.
Ecosystems depend on organisms to ________ with each other to maintain stability.
a)
interact
b)
build
c)
eat
d)
grow
8.
Organisms are the ________ things in an ecosystem.
a)
factors
b)
nonliving
c)
resources
d)
living
9.
Air, water, and sunlight are all ________ components of an ecosystem.
a)
factors
b)
nonliving
c)
man-made
d)
living
10.
An organism that gets food by eating other organisms? 
a)
producer 
b)
consumer
c)
herbivore 
d)
decomposer 
11.
What are producers? 
a)
organisms that store extra food 
b)
organisms that make their own food
c)
breaks down dead organisms 
d)
decomposes nutrients 
12.
What is an organism that breaks down dead organisms and wastes to live and grown? 
a)
herbivore
b)
consumer
c)
producer 
d)
decomposer
13.
Which animals are examples of consumers? 
a)
hawks and plants 
b)
lion and hawks
c)
plankton
d)
algae and fish 
14.
Most ecosystems have many food chains. What are food chains that overlap in an ecosystem and show feeding relationships? 
a)
unhealthy
b)
energy pyramid 
c)
food web
d)
matter
15.
What is an ecosystem? 
a)
producing food from sunlight
b)
animals that live in certain areas
c)
living and nonliving things that interact in an area
d)
a person who studies an environment
16.
All the members of one species that live within an area of an ecosystem is a?
a)
population
b)
community
c)
niche
17.
The different populations that interact with each other in the same area form?
a)
population
b)
community
c)
niche
18.
Which is NOT an abiotic factor:
a)
soil
b)
air
c)
bacteria;
d)
water
19.
Which of the following is NOT a consumer?
a)
grass
b)
dog
c)
shark
d)
fish
20.
An organism that gets energy from eating other organisms is a ______________.
a)
producer
b)
consumer
c)
decomposer
d)
prey
21.

All the abiotic and biotic factors in an area make up a(n)

a)

habitat

b)

territory

c)

ecosystem

d)

community

22.

Water, sunlight, and soil are

a)

biotic factors

b)

needed for survival

c)

not needed for survival

d)

abiotic factors

23.

The part of an ecosystem where an organism lives and feeds is called its

a)

space

b)

population

c)

community

d)

habitat

24.

What is the first and smallest level of organization?

a)

species

b)

population

c)

community

d)

ecosystem

25.

What is the largest level of organization?

a)

population

b)

community

c)

ecosystem

d)

species

26.

What are the abiotic factors in the picture?

a)

trees

b)

dirt

c)

animals

d)

fog

27.

What level of organization does the monkey represent?

a)

ecosystem

b)

community

c)

population

d)

species

28.

What level of organization do all the ferns represent?

a)

species

b)

population

c)

community

d)

ecosystem

29.

An organism's habitat must provide all the following except

a)

water

b)

predators

c)

shelter

d)

food

30.

Which of the following is an example of a population?

a)

rocks in a rock collection

b)

cats and dogs in a neighborhood

c)

bushes and grass in a forest

d)

gray wolves in a forest

31.

Which of the following is a biotic factor?

a)

water

b)

soil

c)

grass

d)

sunlight

32.

An organism's particular role or job is its

a)

ecosystem

b)

limiting factor

c)

niche

d)

adaptation

33.
What are producers? 
a)
organisms that store extra food 
b)
organisms that make their own food
c)
breaks down dead organisms 
d)
decomposes nutrients 
34.
What is an organism that breaks down dead organisms and wastes to live and grown? 
a)
herbivore
b)
consumer
c)
producer 
d)
decomposer
35.
Most ecosystems have many food chains. What are food chains that overlap in an ecosystem and show feeding relationships? 
a)
unhealthy
b)
energy pyramid 
c)
food web
d)
matter
36.
What is an ecosystem? 
a)
producing food from sunlight
b)
animals that live in certain areas
c)
living and nonliving things that interact in an area
d)
a person who studies an environment
37.
What year is the zebra population the highest?
a)
1920
b)
2000
c)
1960
d)
2020
38.
A nonliving element in an ecosystem is an 
a)
animal
b)
abiotic factor
c)
biotic factor
d)
organism
39.

All of the populations that live in one area together

a)

limiting factors

b)

populations

c)

community

d)

speed limit

40.
The place where an organism lives that provides it with shelter, food and water.
a)
ecosystem
b)
population
c)
community
d)
habitat
41.
An ecosystem is made up of _______ and ________ things.
a)
Living and nonliving
b)
Alive and dead
c)
Plants and animals
d)
Land and water
42.
What is the role an organism plays in its ecosystem?
a)
Habitat
b)
Niche
c)
Organism
d)
Population
43.

A scientist would look at a group of rabbits that live in a meadow and call them a _____________.

a)

succession

b)

population

c)

community

d)

habitat

44.

Corals live near the surface of the ocean in some warm regions of the world. The corals provide a home for algae. The algae, in turn, produce food that is used by the corals. Which is a biotic factor in this ecosystem?

a. The temperature of the water

b. The (salinity (salt content) of the water

c. The size of the algae population

d. The amount of sunlight that reaches the coral.

a)

The temperature of the water

b)

The (salinity (salt content) of the water

c)

The population of algae

d)

The amount of sunlight that reaches the coral.

45.

Which of the following describes how an abiotic factor can impact the population in an ecosystem?

a)

A parasite that invades a host can reproduce and cause a decline in the host species population.

b)

Organisms that compete for the same resources will keep each other from overpopulating.

c)

Predators will prevent herbivores from depleting the plants and other resources in an ecosystem.

d)

Seasonal variations in temperature can cause some of the individuals in a population to die.

46.

Changes to abiotic factors in an environment can impact biotic factors. Which statement is the BEST example of this situation?

a)

Heavy rainfall increases soil erosion.

b)

Melting glaciers cause sea levels to rise.

c)

Cold temperatures cause rocks to weather.

d)

Drought conditions increase competition among consumers.

47.

Dead matter and waste would pile up without which type of organism?

a)

decomposer

b)

consumer

c)

producer

48.

The nonliving physical environment of an ecosystem is the __________ component.

a)

abiotic

b)

biotic

c)

diverse

d)

living

49.

A community of organisms living together with their physical environment is a(n)

a)

biome

b)

biosphere

c)

ecosystem

d)

atmosphere

50.

Many different organisms live in Amanda’s garden. The diagram shows a simple food web of some of the organisms in her garden. Predation helps maintain the stability of an ecosystem. Which statement BEST describes how this garden ecosystem can benefit from the presence of snakes?

a)

The snakes provide an energy source for the moles.

b)

The snakes consume the mice best adapted to their environment.

c)

The snakes eat moles, which allows the population of mice to increase.

d)

The snakes keep the mice from overpopulating, which could deplete plant resources.

51.

In any ecosystem, organisms interact with biotic and abiotic parts of the environment. As a result of all of the interactions, the matter within the system is

a)

produced when plants grow.

b)

recycled when organisms die.

c)

lost when animals and plants die.

d)

formed when new animals are born.

52.

A rabbit.

a)

Individual

b)

Population

c)

Community

d)

Ecosystem

e)

Abiotic

53.

Giraffes, zebra, and lions.

a)

Individual

b)

Population

c)

Community

d)

Ecosystem

e)

Abiotic

54.

A tidepool.

a)

Individual

b)

Population

c)

Community

d)

Ecosystem

e)

Abiotic

55.

A group of chimpanzees.

a)

Individual

b)

Population

c)

Community

d)

Ecosystem

e)

Abiotic

56.

Guppies and elodea.

a)

Individual

b)

Population

c)

Community

d)

Ecosystem

e)

Abiotic

57.

Temperature.

a)

Individual

b)

Population

c)

Community

d)

Ecosystem

e)

Abiotic

58.

A backyard pond.

a)

Individual

b)

Population

c)

Community

d)

Ecosystem

e)

Abiotic

59.

Weather.

a)

Individual

b)

Population

c)

Community

d)

Ecosystem

e)

Abiotic

60.

Stingrays, hammerhead sharks, and swordfish.

a)

Individual

b)

Population

c)

Community

d)

Ecosystem

e)

Abiotic

61.

A pack of wolves.

a)

Individual

b)

Population

c)

Community

d)

Ecosystem

e)

Abiotic

62.

Sunflowers.

a)

Boitic

b)

Abiotic

63.

Fire.

a)

Boitic

b)

Abiotic

64.

Sunlight.

a)

Boitic

b)

Abiotic

65.

Which of the following best describes a Decomposer?

a)

An organism that obtains energy by breaking down dead stuff

b)

An organism that produces oxygen

c)

A dead thing

66.

A community of organisms that live in a specifice area and the environment in which they live is known as:

a)

Population

b)

Ecosystem

c)

Species

67.

Grass: Biotic or Abiotic?

a)

Biotic

b)

Abiotic

68.

Clouds: Biotic or Abiotic?

a)

Abiotic

b)

Biotic

69.

Which of the following is most likely to be a primary consumer?

a)
b)
c)
d)
70.

Which of the following images does not contain a "Producer?"

a)
b)
c)
d)
71.

An organism that eats other organisms

a)

Producer

b)

Consumer

72.

A living thing

a)

herbivore

b)

carnivore

c)

organism

d)

producer

73.

An organism that is able to produce its own food through photosynthesis

a)

consumer

b)

producer

74.

All the feeding relationships in an ecosystem

a)

food web

b)

food chain

75.

Any biotic or abiotic component of the ecosystem that controls the size of the population

a)

population

b)

limiting factor

c)

competition

d)

predation

76.

Living organisms and products of organisms

a)

biotic

b)

abiotic

77.

A sequence of organisms that eat to obtain energy within an ecosystem

a)

food web

b)

food chain

78.

Population

a)

All the living things in a specified area at one time

b)

All the individuals of one kind in a specified area at one time

c)

All the living and non-living things in a specified area at one time

d)

All the non-living things in a specified area at one time

79.

The process by which producers make energy-rich molecules (food) from water and carbon dioxide in the presence of light

a)

photosynthesis

b)

photography

c)

pyrogenics

d)

pigmentations

80.

Which of these is an observation?

a)

The dog is 4 years old.

b)

The dog is wearing a hat.

81.

What is an observation about this picture?

a)

The lady is working on a remote learning day.

b)

This lady has her hair in a bun.

82.
What is an inference? 
a)
Just a random guess
b)
A prediction or logical conclusions about our observations
c)
The same as an observation
d)
deciding if an observation is qualitative or quantitative
83.

Choose 2 inferences about this picture.

a)

Today is the dog's birthday.

b)

There is a candle on the cake.

c)

The dog has a tag on the collar.

d)

The dog will eat the cake.

84.

Observation or Inference: I think the weather is cold.

a)

Observation

b)

Inference

85.

Observation or Inference: I notice the tree by the pond has no leaves on it.

a)

Observation

b)

Inference

86.

Which statement is an observation about this picture?

a)

There are washing machines or dryers in the picture.

b)

The woman is at a laundry mat.

87.

Which two of these can be observations about a gorilla?

a)

The gorilla wants a bigger banana.

b)

The gorilla has 5 fingers on his right hand.

c)

The gorilla is hungry.

d)

The gorilla has dark brown hair.

88.

The cat looks mad. He must be hangry.

a)

Observation

b)

Inference

89.

The camptosaurus is going to eat

the stegosaurus

a)

Observation

b)

Inference

90.

Observation or Inference: The cat is scared.

a)

Observation

b)

Inference

91.

Choose 2 inferences about this picture.

a)

The person is wearing brown shoes.

b)

There are 2 carts showing in the picture.

c)

The person is trying to climb up in the dryer to hide.

d)

The cart is used for hanging and sorting clothes.

92.

Using any of your 5 senses to describe the world around you.

a)

Observation

b)

Inference

c)

Quantitative Observation

d)

Logical Theory

93.

Amy got a 100%

on her math test. Girls are better at math.

a)

Observation

b)

Inference

94.

There is a candle burning.

a)

Observation

b)

Inference

95.

There are clouds in the sky. It is going to rain.

a)

Observation

b)

Inference

96.

The sky is blue.

a)

Observation

b)

Inference

97.

Spiders eat children

a)

observation

b)

inference

98.

The slide is broken.

a)

Observation

b)

Inference

99.

There are two spiders on the slide.

a)

qualitative observation

b)

quantitative observation

100.

Which of the following is NOT an ecosystem service?

a)

Provisioning Services

b)

Cultural Services

c)

Regulating Services

d)

Economic Services

101.

Fruits, fish, and livestock are examples of which ecosystem service?

a)

Regulating

b)

Provisioning

c)

Cultural

d)

Supporting

102.

Music, art, and architecture born from interactions with nature are examples of which ecosystem service?

a)

Provisioning

b)

Cultural

c)

Regulating

d)

Supporting

103.

Which of the following would be a supporting service?

a)

Bees pollinating flowers

b)

Wild plants that serve medical purposes

c)

Tourism

d)

Fish that are used to feed populations of humans

104.

Goods that come from natural resources that ecosystems carry out that have financial value to humans

a)

Biodiversity

b)

Ecosystem services

c)

Biosphere services

d)

Environmental resources

105.

Goods taken directly from ecosystems or made from their natural resources

a)

provisioning services

b)

regulating services

c)

cultural services

d)

supporting services

106.

The service provided by natural systems that helps stabilize environmental conditions such as climate and air quality

a)

cultural services

b)

supporting services

c)

regulating services

d)

provisioning services

107.

The services ecosystems provide that make processes we do ourselves (such as filtering water) more efficient

a)

cultural services

b)

provisioning services

c)

regulating services

d)

supporting services

108.

Parks, camping, and tours

a)

cultural services

b)

provisioning services

c)

regulating services

d)

supporting services

109.

Food, medicine, and water are examples of which ecosystem service?

a)

Regulating

b)

Provisioning

c)

Cultural

d)

Supporting

110.
Which of the following is an example of an ecosystem service?
a)
water filtration
b)
food 
c)
oxygen
d)
they all are!
111.
What term describes the positive benefits that wildlife or ecosystems provides to people?
a)
ecosystem services
b)
ecosystem
c)
biodiversity
112.

Sometimes when a bee pollinates a flower, this action is beneficial to humans. Bees are the main pollinators of many plants that humans eat, such as blueberries, potatoes, apples, celery, and strawberries. What are the benefits that humans receive from the ecosystem called?

a)

ecological restoration

b)

sustainability

c)

ecosystem services

d)

ecology

113.

Because milkweed bugs have 6 legs, 3 separate body parts (head, thorax, and abdomen), and 2 antennae, they are considered to be an _______.

a)

invertebrate

b)

vertebrate

c)

insect

d)

arachnid

114.

A __________ is a tube-like beak for sucking fluids.

a)

instar

b)

proboscis

c)

nymph

d)

clutch

115.

Milkweed bugs have a tough outer covering protecting it. This is called the _______.

a)

exoskeleton

b)

endoskeleton

c)

probosics

d)

molting

116.

An immature milkweed bug is called a(n) _______.

a)

instar

b)

clutch

c)

nymph

d)

baby

117.

The process of shedding the exoskeleton is called _______.

a)

instaring

b)

shedding

c)

exoskeleton release

d)

molting

118.

The milkweed bug will molt 5 times before it becomes an adult. Each of these nymphal stages is called a(n) ________.

a)

molt

b)

instar

c)

clutch

d)

child

119.

A female bug lays her eggs in _____ or clusters of eggs.

a)

nymphs

b)

groups

c)

clutches

d)

cotton

120.

Which is the correct identification?

a)

one on left is male

b)

one on right is male

121.

What do milkweed bugs eat?

a)

in the wild - milkweed plants AND in the classroom - raw shelled sunflower seeds

b)

in the wild - sunflower seeds AND in the classroom - milkweed plants

c)

in the wild - milkweed plants AND in the classroom - parsley plants

d)

in the wild - raw shelled sunflower seeds AND in the classroom - raw shelled sunflower seeds

122.

Which of the following is true about molting?

a)

Milkweed bugs must molt because their exoskeleton is not flexible so they cannot grow inside it.

b)

After molting, their new exoskeleton is moist and flexible, allowing them to grow.

c)

After molting, they grow to twice their original size within minutes.

d)

Within a few hours of molting, the new exoskeleton hardens, providing the protection they need.

123.

Milkweed bugs go through a process of gradual maturing that happens through stages (eggs, instars, adults). This is called __________________________.

a)

molting

b)

proboscis

c)

metamorphosis

d)

incomplete metamorphosis

124.

Which of the following is considered an observation?

a)

the monkey is 3 ft tall

b)

there are 3 visible monkeys

c)

both animals are in the same tree

d)

All are examples of observations

125.

Which of the following is an example of an inference?

a)

the monkeys are happy

b)

the monkey is mad at the other monkey

c)

the monkeys love each other

d)

All are examples of inferences

126.
conclusion based on evidence from data and reasoning is called:
a)
theory
b)
inference
c)
observation
d)
hypothesis
127.
________ is the process of obtaining information by using the senses. 
a)
analyze
b)
inference
c)
observation
d)
hypothesis

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