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Unit 2

Total questions: 114

Worksheet time: 1hrs 14mins

Name
Class
Date
1.
Which of the following is an organism that eats only meat?
a)
herbivore
b)
carnivore
c)
omnivore
2.
Which of the following terms describes an area where an organism lives?
a)
community
b)
habitat
c)
area
3.
Which is represented by all of the bullfrogs living around a pond?
a)
community
b)
habitat
c)
population
4.
Which is an example of a parasitic relationship?
a)
a bee pollinates a flower
b)
a tapeworm takes nutrients from a dog
c)
an orchid lives in a tree but does not harm the tree
5.
In which type of relationship do both species benefit?
a)
parasitism
b)
mutualism
c)
commensalism
6.
Barnacles grow on whales.  Whales give the barnacles a place to live but the barnacles do not help or harm the whale.  Which type of relationship is this?
a)
commensalism
b)
mutualism
c)
parasitiesm
7.
An organism that needs to eat other organisms to obtain energy is known as a:
a)
Autotroph
b)
Producer
c)
Consumer
d)
Mutualist
8.
Consumer that eats plants
a)
heterotroph
b)
herbivore
c)
producer
d)
community
9.
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. 
10.
Where an organism lives
a)
habitat
b)
niche 
c)
heterotrogh
d)
biosphere
11.
An illustration that uses arrows to show the MANY possible directions in which matter and energy can pass through the organisms in an ecosystem.
a)
Food chain
b)
Food web
c)
Energy Pyramid
d)
Succession Map
12.
The nonliving aspects of an ecosystem.
a)
Abiotic factors
b)
Biotic factors
13.
A collection of organisms that make up a community as well as all of the nonliving aspects of the environment.
a)
Population
b)
Community
c)
Habitat
d)
Ecosystem
14.
 plants that convert energy from the sun
a)
decomposer
b)
primary consumer
c)
secondary consumer
d)
producer
15.
Different populations living and interacting with each other in the same area
a)
Biome
b)
Ecosystem
c)
Community
d)
Niche
16.

What happens when different species try to occupy the same niche?

a)

The species compete with each other

b)

The species cooperate with each other

c)

The species coexist with each other

d)

All of the above

17.

What is a niche?

a)

The habitat that an organism lives in

b)

An organism’s “role” in an ecosystem

c)

A type of consumer

d)

The relationship between a producer and consumer

18.

The first organism in a food chain is ALWAYS a:

a)

producer

b)

consumer

c)

decomposer

d)

Any of the above

19.

What is biodiversity?

a)

The different ways species reproduce

b)

The degree of variation of life on Earth

c)

A way to describe similarities between different species

d)

The process of creating new species

20.

A model that shows the amount of energy available at each feeding level of an ecosystem

a)

ecosystem

b)

nitrogen cycle

c)

energy pyramid

d)

food web

21.

the scientific study of how organisms interact with their environment and all the other organisms that live in that environment

a)

biotic factor

b)

food chain

c)

ecosystem

d)

ecology

22.

a model of the feeding relationships between many different consumers and producers in an ecosystem

a)

food chain

b)

ecosystem

c)

food web

d)

energy pyramid

23.

a living thing in an ecosystem

a)

producer

b)

abiotic factor

c)

consumer

d)

biotic factor

24.

the feeding relationship between a producer and a single chain of consumers in an ecosystem

a)

energy pyramid

b)

food web

c)

food chain

d)

cycle

25.

a non-living physical or chemical part of an ecosystem

a)

abiotic factor

b)

biotic factor

c)

transpiration

d)

respiration

26.

organisms that break down dead plant and animal matter into simpler compounds

a)

consumers

b)

producers

c)

decomposers

d)

scavengers

27.

Which is NOT a process of the water cycle?

a)
precipitation
b)
freezing
c)
transpiration
d)
evaporation
28.
The process of plants losing water through their leaves is called ____.
a)
condensation
b)
evaporation
c)
transpiration
d)
exhaling
29.

Why do living things need nitrogen?

a)

To get energy

b)

To make amino acids

c)

To make proteins

d)

To make proteins AND amino acids

30.
What is the only process that removes carbon from the atmosphere?
a)
combustion
b)
cellular respiration
c)
photosynthesis
d)
decomposition
31.
Where is carbon stored in the environment?
a)
Fossil fuels
b)
Wood of trees
c)
Calcium carbonate (shells and bones)
d)
All of the above
32.
These gases, such as carbon dioxide, trap heat in the Earth's atmosphere causing global warming
a)

Global Warming Gases

b)

Hothouse Gases

c)

Greenhouse Gases

d)

Thermal Pollution

33.
What converts nitrogen into a useable form for plants and animals?
a)
bacteria
b)
fungi
c)
rain
34.
Which nutrient is not cycled through the atmosphere?
a)
carbon
b)
nitrogen
c)
phosphorous
d)
water
35.

What cycle are fossil fuels part of ?

a)

carbon

b)

oxygen

c)

nitrogen

d)

phosphorus

36.

What is the largest reservoir for water?

a)

the ocean

b)

rocks and minerals

c)

the atmosphere

d)

glaciers

37.

Where is the largest reservoir for the phosphorus cycle?

a)

rocks and minerals

b)

the ocean

c)

the atmopshere

d)

fossil fuels

38.

What is the largest reservoir for nitrogen?

a)

the ocean

b)

rocks and minerals

c)

the atmosphere

d)

bacteria

39.

Photosynthesis is an important part of the ______ cycle

a)

Carbon

b)

Water

c)

Phosphorus

d)

Nitrogen

40.

Decomposition is part of all cycles except _______

a)

the carbon cycle

b)

the nitrogen cycle

c)

the water cycle

d)

the phosphorus cycle

41.

In evaporation, water _______

a)

turns from a liquid state to vapor (gas)

b)

falls from the sky like rain or snow

c)

forms clouds

d)

gets locked into ice

42.

Phosphorus is a greenhouse gas

a)

true

b)

false

43.
This process is responsible for most environmental problems of excess nitrogen and phosphorus entering streams, lakes and oceans.
a)
decomposition
b)
emissions from automobiles
c)
agriculture and house hold runoff
d)
photosynthesis
44.
How do animals get nitrogen?
a)
the atmosphere 
b)
eating other organisms
c)
rainwater
d)
lightning 
45.
When humans burn fossil fuels, most of the carbon quickly enters the                       as carbon dioxide.
a)
Water
b)
Atmosphere
c)
Sun
d)
Air
46.

The only organisms that can fix atmospheric nitrogen into chemical compounds are what?

a)

virus

b)

bacteria and lightening

c)

carbon

d)

none of these

47.

Photosynthesizing plants affect the carbon cycle by...

a)

Creating more carbon atoms

b)

Reducing the amount of carbon in the soil

c)

Absorbing CO2 from the atmosphere, lowering atmospheric levels of carbon

d)

None of the above; plants do not affect the carbon cycle

48.

The burning of fossil fuels contributes to the carbon cycle in what way?

a)

Increases the amount of CO2 in the atmosphere

b)

Increases the amount of O2 in the atmosphere

c)

Decreases the amount of CO2 in the atmosphere

d)

Decreases the amount of O2 in the atmosphere

49.

Nitrogen is part what important molecule(s)?

a)

DNA

b)

Proteins

c)

Lipids

d)

ATP

50.

Which type of organism performs nitrogen fixation?

a)

Bacteria

b)

Viruses

c)

Humans

d)

Plants and phytoplankton

51.

Plants obtain nitrogen through photosynthesis.

a)

True

b)

False

52.

Examples of decomposers include:

a)

humans, dogs, and whales

b)

trees, tomato plants, and phytoplankton

c)

viruses

d)

fungi, worms, and bacteria

53.

Which of these is NOT a part of the Nitrogen Cycle?

a)

nitrification

b)

photosynthesis

c)

denitrification

d)

fixation

54.

Deforestation affects the Carbon Cycle by...

a)

Reducing the amount of CO2 that can be removed from the air by plants

b)

Increasing the amount of CO2 that can be removed from the air by plants

c)

Increasing the rate of photosynthesis that can be done by plant plants

d)

Decreasing the biodiversity of land plants

55.

Which of these is the first stage of the Nitrogen Cycle?

a)

denitrification

b)

fixation

c)

ammonification

d)

assimilation

56.

All living things can use nitrogen gas from the atmosphere.

a)

True

b)

False

57.
Which of the following is the correct equation for PHOTOSYNTHESIS?
a)
CO2 + light + H2O --> O2 + Sugar
b)
CO2 + sugar + H2O --> O2 + light
c)
O2 + light + H2O --> CO2 + Sugar
d)
CO2 + O2 + H2O --> Light+ Sugar
58.
What are the two products of the light reactions that are needed for the calvin cycle?
a)
NAD and NADPH
b)
NADP + and Glucose
c)
NADPH and ATP
d)
Oxygen and NADPH
59.

Select all that are raw materials for Photosynthesis.

a)

Water

b)

Carbon Dioxide

c)

Oxygen

d)

Sunlight (Light Energy)

e)

Glucose (Sugar/food)

60.

Select all that are products of Photosynthesis.

a)

Water

b)

Carbon Dioxide

c)

Oxygen

d)

Sunlight (Light Energy)

e)

Glucose (Sugar/food)

61.
Which choice correctly shows the gases that enter and exit plants during photosynthesis?
a)
Enter: Oxygen
Exit: Carbon dioxide
b)
Enter: Water vapor
Exit: Glucose
c)
Enter: Carbon dioxide
Exit: Oxygen
d)
Enter: Light
Exit: Water vapor
62.
Which of the following is an example of an AUTOTROPH?
a)
Appletree
b)
Dog
c)
Mushroom
d)
Human
63.
What is the ultimate ORIGINAL source of energy for living things
a)
Sugar
b)
Sun
c)
Moon
d)
Carbon Dioxide
64.

What is the pigment in chloroplasts that performs photosynthesis?

a)

Chlorosynthesis

b)

Chlorophyll

c)

Chloroplast

d)

Green

65.
Plants need ________ for photosynthesis
a)
oxygen
b)
soil
c)
carbon dioxide
d)
sugar
66.
The ____________ is the most photosynthetic part of a plant.
a)
leaf
b)
flower
c)
roots
d)
stem
67.
Leaves look green because.....
a)
they eat their vegetables
b)
to blend into their environment
c)
they contain a molecule named chlorophyll
d)
they are sick
68.
Glucose is a ...
a)
sugar
b)
carbohydrate
c)
source of quick energy
d)
all are correct
69.
The formula for glucose is...
a)
C12 H22 O11
b)
NaCl
c)
NaOH
d)
C6 H12 O6
70.

What role does NADPH play in cellular respiration

a)

It is long term energy storage

b)

it is a high-energy hydrogen carrier

c)

it breaks down glucose

d)

it is an enzyme

71.

what are the products of the light reactions

a)

thylakoid

b)

oxygen

c)

ATP

d)

NADPH

72.

what are the inputs of the calvin cycle?

a)

NADPH

b)

ATP

c)

CO2

d)

H2O

e)

chlorophyll

73.
This is referred to as the energy currency of the cell
a)
ADP
b)
ATP
c)
Mitochondria
d)
Nucleus
74.
This is referred to as the energy currency of the cell
a)
ADP
b)
ATP
c)
Mitochondria
d)
Nucleus
75.
This process releases chemical energy from sugars and other carbon-based molecules to make ATP when oxygen is present.
a)
photosynthesis
b)
light-independent reaction
c)
cellular respiration
d)
light-dependent reaction
76.

Glucose is broken down into pyruvic acid during which process

a)
Krebs cycle
b)
Calvin cycle
c)
Glycolysis
d)
Photosynthesis
77.
Aerobic respiration is different from anaerobic respiration in that aerobic respiration needs...
a)
chlorophyll
b)
carbon dioxide
c)
glucose
d)
oxygen
78.
What is the correct equation for cellular respiration?
a)
6O2 + C6H12O6 -> 6CO2 + 6H2O + Energy
b)
6O2 + C6H12O6 + Energy -> 6CO2 + 6H2O
c)
6CO2 + 6H2O -> 6O2 + C6H12O6 + Energy
d)
6CO2 + 6H2O + Energy -> 6O2 + C6H12O6
79.
Where does the Krebs Cycle take place?
a)
mitochondria
b)
chloroplast
c)
cytoplasm
d)
nucleus
80.

Which molecule isn't a high energy hydrogen carrier?

a)
FADH2
b)
NADH
c)
oxygen
81.

what are the outputs of glycolysis?

a)

CO2

b)

Pyruvic acid x 2

c)

H2O

d)

ATP

82.
The energy in ATP is stored 
a)
in the bond between the second and third phosphate
b)
in the bond between the first and second phosphate
c)
in the bond between the adenosine and the first phosphate
d)
I like turtles
83.
What is the energy molecule?
a)
DNA
b)
ATP
c)
RNA
d)
AAA
84.
The splitting of the glucose molecule is called?
a)
synthesis
b)
denaturalization
c)
glycolysis
d)
dissolving
85.

Which of the following is a product of cellular respiration?

a)

Radiant Energy

b)

Oxygen

c)

Glucose

d)

Water

86.

What are the reactants (taken into) of cellular respiration? (Mark all of them!)

a)

oxygen

b)

glucose

c)

carbon dioxide

d)

water

e)

energy

87.

Each glucose (6C) produces how many pyruvic acid (3C) molecules?

a)

5

b)

2

c)

3

d)

4

88.
Where does glycolysis take place?
a)
Cytoplasm
b)
Stroma
c)
Thylakoid
d)
Mitochondria
89.

Which of the following do at least one stage of cellular respiration

a)

plants

b)

animals

c)

bacteria

d)

fungi

90.

What happens to the carbon atoms in glucose during cellular respiration?

a)

They are exhaled as CO2CO_2  

b)

They disappear

c)

They are broken down and dissolve

d)

They stay in the mitochondria forever

91.

Why does the third phosphate in ATP have so much energy stored in the bond?

a)

it is highly unstable

b)

it isn't

c)

it is highly stable

d)

it is moving very fast

92.

What role do NADH and FADH2 (produced during Glycolysis and Kreb's Cycle) play in cellular respiration

a)

they are energy carriers (hydrogen)that use that energy to produce massive amounts of ATP

b)

They are waste products and are pushed out of the cell

c)

They are necessary for long-term energy storage

d)

They don't play any role in cellular respiration

93.

What are the outputs of the kreb's cycle

a)

CO2

b)

H2O

c)

ATP

d)

NADH and FADH2

94.

What happens in the electron transport chain?

a)

NADH and FADH2 drop off hydrogens to form massive amounts of ATP

b)

pyruvic acid is formed from breaking down glucose

c)

CO2 is released and H2O and ATP

d)

glucose is broken down and ATP is formed

95.

The science, art, and business of cultivating soil, producing crops, and raising livestock

a)

Agriculture

b)

Anthropogenic Changes

c)

Deforestation

d)

Energy Usage

96.

Changes in the environment induced by human activity—including habitat destruction, pollution, introduction of invasive species, overexploitation, and climate change—which can disrupt an ecosystem and threaten the survival of some species

a)

Climate Change

b)

Anthropogenic Changes

c)

Biodiversity

d)

Overexploitation

97.

The sum of the different forms of living things in a given area or population

a)

Ecosystem

b)

Deforestation

c)

Biodiversity

d)

Overexploitation

98.

A long-term change in the temperature range and related environmental variables for regions of Earth

a)

Consumption

b)

Climate Change

c)

Pollution

d)

Environment

99.

The use of resources, such as fuel and food, by specific populations

a)

Consumption

b)

Overexploitation

c)

Deforestation

d)

Biodiversity

100.

Removal of a forest or stand of trees, which are then used for nonforest purposes

a)

Reuse

b)

Deforestation

c)

Pollution

d)

Overpopulation

101.

All of the biotic and abiotic factors and the interactions among them in a given area

a)

Population

b)

Biodiversity

c)

Climate Change

d)

Ecosystem

102.

The amount of energy utilized

a)

Overexploitation

b)

Biodiversity

c)

Energy Usage

d)

Consumption

103.

Everything that surrounds a system

a)

Environment

b)

Ecosystem

c)

Population

d)

Recycle

104.

The impact on the environment created by the Industrial Revolution

a)

Anthropogenic Changes

b)

Climate Change

c)

Environmental Impact

d)

Pollution

105.

An alien (non-native to the ecosystem) species, usually brought to an area by humans, that competes for resources and causes problems for the native species within an ecosystem

a)

Environment

b)

Ecosystem

c)

Invasive Species

d)

Population

106.

Use of a natural resource at a level that results in the unwanted depletion or destruction of the resource

a)

Recycle

b)

Reuse

c)

Overexploitation

d)

Energy Usage

107.

More organisms in an area than an ecosystem can support

a)

Population

b)

Overpopulation

c)

Overexploitation

d)

Climate Change

108.

A harmful substance that contaminates a

natural environment

a)

Deforestation

b)

Environmental Impact

c)

Overexploitation

d)

Pollution

109.

All of the organisms of one species within a particular ecosystem

a)

Population

b)

Overpopulation

c)

Overexploitation

d)

Ecosystem

110.

To properly dispose of used resources so they can be reprocessed into new products

a)

Energy Usage

b)

Recycle

c)

Reduce

d)

Reuse

111.

To make smart purchasing decisions that result in less waste and packaging

a)

Reduce

b)

Reuse

c)

Recycle

d)

Overexploitation

112.

To find ways to use containers and products multiple times

a)

Recycle

b)

Reduce

c)

Reuse

d)

Energy Usage

113.

A type of farming and fishing that produces food in a way that does not harm the environment

a)

Anthropogenic Changes

b)

Overexploitation

c)

Agriculture

d)

Sustainable Farming and Fishing

114.

All of the following are ways to help the environment, EXCEPT

a)

Reduce

b)

Reuse

c)

Recycle

d)

Overexploitation

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