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Ecology Test

Total questions: 92

Worksheet time: 56mins

Name
Class
Date
1.

The parts of Earth where life exists

a)

lithosphere

b)

biosphere

c)

hydrosphere

d)

atmosphere

2.

A land-based ecosystem

a)

abiotic

b)

aquatic ecosystem

c)

ecosystem

d)

terrestrial ecosystem

3.

A system that is made up of all the interacting biotic and abiotic parts of a certain place.

a)

aquatic ecosystem

b)

ecologist

c)

ecosystem

d)

abiotic

4.

This offers protection from UV radiation, helps hold in heat, and contains the oxygen and carbon dioxide required for animal and plant life.

a)

biosphere

b)

lithosphere

c)

hydrosphere

d)

atmosphere

5.

Energy-rich food compound that stores chemical energy.

a)

glucose

b)

cellular respiration

c)

giraffe

d)

mitochondria

6.

Any living thing that gets the energy it needs by making its own food.

a)

photosynthesis

b)

cellular respiration

c)

producer

d)

consumer

7.

A model that describes how the energy that is stored in food is transferred from one living thing to another.

a)

glucose

b)

producer

c)

food chain

d)

cellular respiration

8.

A series of chemical changes that let living things release the energy stored in sugars to fuel all life functions.

a)

consumer

b)

cellular respiration

c)

photosynthesis

d)

glucose

9.

A series of chemical changes that let green plants capture the Sun's light energy and transform it into chemical energy.

a)

cellular respiration

b)

glucose

c)

photosynthesis

d)

food web

10.

Any substance that a living thing needs to sustain life.

a)

algal bloom

b)

nutrient

c)

decomposer

d)

fertilizer

11.

The number and variety of different species of living things in an area.

a)

biodiversity

b)

diversity

c)

pollutants

d)

introduced species

12.

The Earth's atmosphere is 78%

a)

nitrogen

b)

oxygen

c)

carbon dioxide

d)

argon

13.

Energy-rich food compound that stores chemical energy.

a)

glucose

b)

cellular respiration

c)

giraffe

d)

mitochondria

14.

Any living thing that gets the energy it needs by making its own food.

a)

photosynthesis

b)

cellular respiration

c)

producer

d)

consumer

15.

A model that describes how the energy that is stored in food is transferred from one living thing to another.

a)

glucose

b)

producer

c)

food chain

d)

cellular respiration

16.

A series of chemical changes that let living things release the energy stored in sugars to fuel all life functions.

a)

consumer

b)

cellular respiration

c)

photosynthesis

d)

glucose

17.

Any substance that a living thing needs to sustain life.

a)

algal bloom

b)

nutrient

c)

decomposer

d)

fertilizer

18.

The pattern of continual use and reuse of a nutrient.

a)

nutrient cycle

b)

drought

c)

global warming

d)

decomposer

19.

An organism that obtains energy by consuming dead plant and animal matter.

a)

drought

b)

decomposer

c)

global warming

d)

algal bloom

20.

Any organism that exists by hunting and eating other organisms.

a)

predator

b)

limiting factor

c)

competition

d)

parasite

21.

Approximately how much energy moves from one trophic level to the next?

a)

1%

b)

10%

c)

50%

d)

90%

22.

An organism that lives in or on, and takes its nourishment from, another organism.

a)

parasite

b)

host

c)

predator

d)

prey

23.

This is the maximum population of a species that an ecosystem can sustain.

a)

logistical growth

b)

density-independent limiting factor

c)

density-dependent limiting factor

d)

carrying capacity

24.

Any species that has been introduced into and lives in an ecosystem where it is not found naturally.

a)

species diversity

b)

introduced species

c)

watershed

d)

pollutants

25.

The number and variety of different species of living things in an area.

a)

biodiversity

b)

diversity

c)

pollutants

d)

introduced species

26.
Barnacles create home sites by attaching themselves to whales. This relationship neither harms nor benefits the whales. 
a)
parasitism
b)
commensalism
c)
mutualism
27.
Yucca flowers are pollinated by yucca moths. The moths lay their eggs in the flowers where the larvae hatch and eat some of the developing seeds. Both species benefit. 
a)
parasitism
b)
commensalism
c)
mutualism
28.
Mistletoe extracts water and nutrients from a spruce tree. The spruce tree is harmed. 
a)
parasitism
b)
commensalism
c)
mutualism
29.
 The stork uses it saw-like bill to cut up the dead animals it eats. As a result, the dead animal carcass is accessible to some bees for food and egg laying. The relationship neither harms nor benefits the stork.
a)
parasitism
b)
commensalism
c)
mutualism
30.

Which of the following shows the symbiotic relationship between the Rodent and the Bird?

a)

Mutualism

b)

Commensalism

c)

Competition

31.

Hermit Crabs live in shells made and then abandoned by snails.

a)

Commensalism

b)

Parasitism

c)

Competition

32.
Two male Giraffes are fighting over the last green leaf of a tree that is dying.  
a)
Competition
b)
Mutualsim
c)
Predation
d)
Commensalism
33.
a relationship that occurs when two or more organims of the same species need the same resource at the same time
a)
competition
b)
symbiosis
c)
predation
34.
In a parasitic relationship, one organism is ___________ and one organism is benefiting. 
a)
helped
b)
harmed
c)
not effected
d)
happy
35.
In a mutual relationship, both organisms are ________________. 
a)
hurt
b)
not effected
c)
harmed
d)
benefiting 
36.
Commensalism is where one organism is benefiting and the other organism is _____________________. 
a)
not effected
b)
helped
c)
harmed
d)
hurt
37.
1.  A bee and a flower work together to benefit each other. This is an example of _________________. The bee helps the flower by pollinating it and the flower helps the bee by providing it with nectar. 
a)
commensal relationship 
b)
parasitic relationship 
c)
mutual relationship 
38.
A tick is a parasite to a horse. Which statement best describes the relationship between the tick and the horse? 
a)
a.  The tick helps the horse get food. 
b)
a.  The tick harms the horse by feeding on its blood. 
c)
a.  The horse harms the tick by feeding on its blood. 
d)
The tick does not affect the horse. 
39.
Which is an example of commensalism?
a)
Two different kinds of organisms harming each other. 
b)
Two different kinds of organisms are neither helping nor harming each other. 
c)
One kind of organism is being helped, but the other one is not harmed or helped. 
d)
One kind of organism is being helped, but the other is harmed. 
40.
Which interaction benefits both organisms?
a)
A flea living on a dog
b)
A bee pollinating a flower
c)
A tapeworm living inside an animal
d)
A mosquito biting a person
41.
Tapeworms live in the intestines of dogs and absorb nutrients from food the dog eats. Which best describes the outcome of this relationship?
a)

Parasitism, the dog and tapeworm both become ill. 

b)

Parasitism, the dog becomes ill, and the tapeworm benefits. 

c)

Commensalism, the tapeworm and dog help each other survive. 

d)

Competition, the tapeworm competes for the same resources as the dog

42.
A mite lives in the base of the eyelashes of people who use mascara. It feeds on the mascara; it does not seem to harm people. What type of symbiotic relationship is this?
a)
mutualism
b)
commensalism
c)
parasitism
d)
predation
43.

A coyote captures, kills, and eats a rabbit. What type of species relationship is this?

a)

mutualism

b)

commensalism

c)

parasitism

d)

predation

44.

The arrows in a food chain or web represents what?

a)

They point to the organism that is being eaten.

b)

It shows how sunlight flows within an ecosystem.

c)

They show the direction the energy is flowing between organisms.

d)

They represent how water is transferred within a habitat.

45.
What does a food web represent?
a)
All connections of energy flow throughout all organisms in a habitat.
b)
The specific ways that mutualism is carried out.
c)
A single pathway or energy flow between organisms. 
d)
How carnivores get their food. 
46.
The image provided is an example of a(n):
a)
Producer
b)
Autotroph
c)
Consumer
d)
Insect
47.
A wolf eats a rabbit, that just ate some berries.  What would you call the rabbit?
a)
Producer
b)
Omnivore
c)
Primary Consumer
d)
2nd order Heterotrph
48.
Autotrophs are organisms that produce their own food. Which do scientist classify as autotrophs?
a)
Chordates
b)
Fungi
c)
Plants
d)
Molds
49.
An organism that obtains energy by consuming plants and animals.
a)
Omnivores
b)
Carnivores
c)
Herbivores
d)
Humans 
50.

Consumers that eat only plants

a)

Carnivores

b)

Omnivores

c)

Herbivores

d)

Scavengers

51.

Consumers, such as vultures, that feed on the bodies of dead organisms

a)

Carnivores

b)

Omnivores

c)

Herbivores

d)

Scavengers

52.

A food _______ is a series of events in which one organism eats another and obtains energy.

a)

chain

b)

web

c)

pyramid

d)

plate

53.

In the food web above, what organism is a tertiary consumer?

a)

Fox

b)

Frog

c)

Vole

d)

Grass

54.

Rain, hail, snow are examples of

a)

Evaporation

b)

Precipitation

c)

Condensation

d)

Transpiration

55.

Forms the basis of all organic compounds

a)

Carbon

b)

Nitrogen

c)

Oxygen

d)

Hydrogen

56.

Which of the following processes does not return CO2 into the atmosphere?

a)

Cellular respiration

b)

Photosynthesis

c)

Burning fossil fuels

d)

Decomposition

57.

Nitrogen-fixing bacteria can be found

a)

On the leaves of legume plants

b)

In the fruits of most plants

c)

In the roots of legume plants

d)

In the stems of legume plants

58.

This image is of the...

a)

Water Cycle

b)

Carbon Cycle

c)

Nitrogen Cycle

d)

Phosphorous Cycle

59.

Which process involves plants having water leave via pores and move into the atmosphere, possibly drying them out.

a)

Condensation

b)

Evaporation

c)

Transpiration

d)

Precipitation

60.

This is an image of...

a)

Phosphorous Cycle

b)

Water Cycle

c)

Nitrogen Cycle

d)

Carbon Cycle

61.

The carbon cycle has many carbon __________, or areas on earth where carbon is stored in many forms, and transfers from one spot to another.

a)

Sinks (reservoirs)

b)

Lockers

c)

Closets

d)

Dishwashers

62.

As plant life decreases from deforestation and fossil fuel burning increases, the CO2 levels in the air will __________, causing the greenhouse effect to increase.

a)

Rise

b)

Fall

c)

Remain Constant

d)

Fluctuate at random

63.

This is an image of the...

a)

Carbon Cycle

b)

Nitrogen Cycle

c)

Phosphorous Cycle

d)

Unicycle

64.

The most important factor in converting nitrogen into usable forms during the nitrogen cycle is...

a)

Animals

b)

Plants

c)

Bacteria

d)

Decomposers

65.

When bacteria convert nitrogen into different usable forms, this is called nitrogen...

a)

Conversion

b)

Nitrification

c)

Conversion

d)

Fixation

66.

You can use the nitrogen in the atmosphere

a)

True

b)

False

67.

All plants can use nitrogen in the atmophere

a)

True

b)

Flase

68.

Which is the following form of nitrogen that is used by plants and animals?

a)

nitrate (NO3)

b)

carbon dioxide (CO2)

c)

Atmospheric nitrogen (N2)

d)

nitrogen monoxide (NO)

69.

Which of the following is a way humans are responsible for habitat destruction?

a)

Deforestation

b)

Planting a garden

c)

Replacing trees that have been cut down

d)

Restoring a wetland

70.
Deforestation of areas considered to be rich sources of genetic material could limit future agricultural and medical advances due to
a)
the maintenance of dynamic equilibrium 
b)
the loss of biodiversity 
c)
an increase in the ecosystem’s carrying capacity
d)
the depletion of the ozone layer
71.
Many common products, such as wooden furniture, paper, and books, are made from trees. Which of the following is a likely consequence of humans cutting down a forest in order to make use of the natural resources there? 
a)
the decrease of chemical runoff into the oceans
b)
increased acid rain
c)
the increase of light pollution in cities
d)
the destruction of habitats
72.
Humans often change ecosystems as a result of population growth, consumption, and technology. Which of the following exemplifies a way in which humans modify ecosystems? 
a)
factory and automotive emissions causing acid rain 
b)
redirecting and storing freshwater behind dams 
c)
cutting down trees to build new buildings and roads 
d)
all of these
73.
Which of the following is a renewable resource?
a)
coal
b)
solar energy
c)
natural gas
d)
oil
74.

Which of the following can be linked to a changing climate?

a)

more wildfires

b)

drought

c)

stronger storms

d)

All of the options

75.
Which of the following issues is the cause of the other environmental impacts caused by humans?
a)
pollution
b)

habitat destruction 

c)
climate change
d)

all of the above

76.
Which of the following is a finite resource?  
a)
solar energy 
b)
wind energy
c)
trees
d)
fossil fuels 
77.
Which of the following is NOT a method of energy conservation?
a)
taking public transportation to work (bus, subway)
b)
riding your bike to work
c)
walking to work 
d)
driving alone in your car to work
78.

Human impact on the environment is often more dramatic than the impact of most other living things because humans have a greater

a)

need for water

b)

need for food

c)

ability to alter the environment

d)

ability to adapt to change

79.

Fertilizers used to improve lawns and gardens may interfere with the equilibrium of an ecosystem because they

a)

cause mutations in all plants

b)

cannot be absorbed by roots

c)

can be carried into local water supplies

d)

cause atmospheric pollution

80.
Pollution can cause harm to the ___________.  
a)
air
b)
land
c)
water
d)
all of the above
81.

Which organisms are the basis of a marine food web?

a)

Crabs

b)

Photoplankton

c)

Fish

d)

Zooplankton

82.
Sunlight, pH of water, temperature, rocks, soil and air would all be ____________.
a)
Biotic 
b)
Abiotic
c)
Ecosystems
d)
Habitats
83.

We can decrease the amount of greenhouse gasses we put in the atmosphere by...

a)

burning less fossil fuels

b)

using more renewable energy

c)

using a bike or walking instead of driving a car

d)

all options are correct

84.
Provides a protective shield around the earth, but also can cause problems for living organisms.
a)
Atmosphere
b)
Ozone
c)
Clouds
d)
Smog
85.
Increase in which gas is primarily responsible for increased global warming?
a)
Carbon dioxide
b)
Water vapor
c)
Methane
d)
Nitric oxides
86.
Effect of sulfur dioxide
a)
Deprives body of oxygen
b)
Irritates the eyes
c)
Causes global warming
d)
Causes acid rain
87.

Which of the following is the most common way of disposing of municipal solid waste (garbage)?

a)

dumping into the ocean

b)

launching into orbit

c)

Placing in landfills

d)

Burning

88.

The human population of earth is about

a)

1 billion

b)

100 billion

c)

8 billion

d)

8 million

89.
As water temperature increases, the level of dissolved oxygen in the water...
a)
increases
b)
decreases
c)
remains the same
d)
water temperature and dissolved oxygen levels are unrelated 
90.
Fishermen have harvested certain fish to the point where the population of that fish is decreasing. This level of direct harvesting could cause
a)
ecosystems to be improved for future generations
b)
ecosystems to be severely damaged
c)
the restoration of environmental stability
d)
all other fish species to increase in number
91.

Modern lifestyles have led to increased demands for a wide variety of consumable products. The packaging of these products has caused environmental problems associated with

a)

food web contamination

b)

urbanization

c)

ozone depletion

d)

solid waste disposal

92.

Human impact on the environment is often more dramatic than the impact of most other living things because humans have a greater

a)

need for water

b)

need for food

c)

ability to alter the environment

d)

ability to adapt to change

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