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7th grade final exam review

Total questions: 96

Worksheet time: 2hrs 35mins

Name
Class
Date
1.
Layer of the atmosphere where the ozone layer is located:
a)
troposphere
b)
stratosphere
c)
mesosphere
d)
thermosphere
2.
Layer of the atmosphere furthest from Earth's surface:
a)
troposphere
b)
exosphere
c)
mesosphere
d)
stratosphere
3.
Layer of the atmosphere that is the warmest:
a)
troposphere
b)
stratosphere
c)
mesosphere
d)
thermosphere
4.
Which layer of the atmosphere has the greatest amount of air pressure?
a)
troposphere
b)
stratosphere
c)
mesosphere
d)
exosphere
5.
As altitude increases in the Troposphere, what happens to the air temperature?
a)
air temperature increases
b)
temperature decreases
c)
temperature fluctuates
d)
temperature rises
6.

What is an important role of the Ozone Layer?

a)

It protects the mesosphere from the Sun's harmful rays.

b)

It protects the troposphere from the Sun's harmful rays.

c)

It prevents floods, hurricanes, and other storms.

d)

It prevents the thermosphere from becoming too warm.

7.
This layer is where weather occurs.
a)
troposphere
b)
thermosphere
c)
exosphere
d)
stratosphere
8.
The higher you go, the air becomes _____ _____.
a)
More dense
b)
Less dense 
9.
This is the layer where meteors, or shooting stars, burn up.
a)
Troposphere
b)
Stratosphere
c)
Mesosphere
d)
Thermosphere
10.

The most common source of carbon monoxide comes from _____________________________.

a)

vehicles

b)

swamp gases

c)

industrial sources

d)

none of these

11.

Which of the following is an adverse health effect from air pollution?

a)

allergic reactions

b)

bronchial inflammation

c)

eye and lung irritants

d)

All of these are correct

12.
The majority of air pollution comes from __________________.
a)
burning fossil fuels
b)
particulate matter
13.

"Criteria to be considered an air pollutant" was established by which federal agency?

a)

Environmental Protection Agency (EPA)

b)

Department of the Interior (DI)

c)

Center for Disease Control (CDC)

d)

United Nations (UN)

14.

Precipitation and storms occur ____.

a)

in high-pressure systems

b)

in polar zones

c)

in low-pressure systems

d)

at fronts

15.

To keep track of high-and low-pressure areas, weather maps are drawn with lines connecting points of equal atmospheric pressure. These lines are called ____.

a)

isotherms

b)

equibars

c)

fronts

d)

isobars

16.

Which of the following devices measures air pressure?

a)

thermometer

b)

barometer

c)

wind vane

d)

anemometer

17.
Which cloud is this?
a)
cumulus
b)
cumulonimbus
c)
cirrus
d)
stratus
18.
Which cloud is this?
a)
cumulus
b)
cumulonimbus
c)
cirrus
d)
stratus
19.
Which cloud is this?
a)
cumulus
b)
cumulonimbus
c)
cirrus
d)
stratus
20.

What type of protist is this?

a)

euglena

b)

volvox

c)

paramecium

d)

amoeba

21.

What type of protist is this?

a)

euglena

b)

volvox

c)

paramecium

d)

amoeba

22.

What type of protist is this?

a)

euglena

b)

volvox

c)

paramecium

d)

amoeba

23.

What type of protist is this?

a)

euglena

b)

volvox

c)

paramecium

d)

amoeba

24.

Which organelle do organisms that photosynthesize have?

a)

mitochondria

b)

nucleus

c)

chloroplast

d)

ribosome

25.

Which two protists can make their own food?

a)

amoeba, paramecium

b)

volvox, euglena

c)

euglena, amoeba

d)

paramecium, volvox

26.

Which two protists ingest their food to get energy?

a)

amoeba, paramecium

b)

volvox, euglena

c)

euglena, amoeba

d)

paramecium, volvox

27.

Euglena and Volvox move using _____.

a)

pseudopods

b)

cilia

c)

flagella

28.

Paramecium move using _____.

a)

pseudopods

b)

cilia

c)

flagella

29.

Amoebas move using _____.

a)

pseudopods

b)

cilia

c)

flagella

30.

All of the protists we have discussed in class are Eukaryotic. Eukaryotic cells have a _____.

a)

chloroplast

b)

nucleus

c)

cell wall

31.

What is a pseudopod?

a)

tiny hairs

b)

tail-like whip

c)

false foot

32.

What is a flagella?

a)

tiny hairs

b)

tail-like whip

c)

false foot

33.

What is cilia?

a)

tiny hairs

b)

tail-like whip

c)

false foot

34.
The nucleus is like the ____________ of the cell.
a)
foot
b)
hand
c)
stomach
d)
brain
35.

Which of the following converts food into energy for the cell?

a)

vacuole

b)

mitochondria

c)

cytoplasm

d)

cell membrane

36.
What do vacuoles do? 
a)
They actually do not have an important role
b)
They protect the cell
c)
They are the brain of the cell
d)
storage area for cells; water storage in plants 
37.
Which of the following, found ONLY in plant cells, provides structure?
a)
cell wall
b)
chloroplast
c)
mitochondria
d)
vacuole
38.

Which of the following is the LEAST complex level of organization?

a)

Tissue

b)

Organism

c)

Cell

d)

Organ

39.

Which of the following is the MOST complex level of organization?

a)

Organism

b)

Organ System

c)

Cell

d)

Tissue

40.

What is a group of different tissues working together to perform a function?

a)

Cells

b)

Atom

c)

Tissue

d)

Organ

41.

What is a group of similar cells that perform a function?

a)

Cell

b)

Tissue

c)

Organ

d)

Organ System

42.

Protects the body, regulates body temperature

a)

Integumentary

b)

Nervous

c)

Skeletal

d)

Muscular

43.

Carries oxygen and nutrients to all parts of the body.

a)

Integumentary

b)

Nervous

c)

Circulatory

d)

Respiratory

44.

Allows movement in the body

a)

Integumentary

b)

Nervous

c)

Skeletal

d)

Muscular

45.

Receives stimuli and transports impulses, coordinates actions and reactions in the body

a)

Integumentary

b)

Nervous

c)

Circulatory

d)

Respiratory

46.

Supports and provides structure for the body

a)

Skeletal

b)

Muscular

c)

Circulatory

d)

Respiratory

47.

Supplies blood with oxygen and rids the body of carbon dioxide

a)

Integumentary

b)

Nervous

c)

Circulatory

d)

Respiratory

48.

The _____ system's function is to break down food into molecules that the body (cells) can use for energy.

a)

muscular

b)

digestive

c)

respiratory

d)

endocrine

49.
B = brown fur  b = white fur
In the Punnett square, what is the probability for white fur? 
a)
0%
b)
25%
c)
50%
d)
75%
50.
What are the possible genotypes for this cross?
(Click the picture to see it without the text)
a)
TT = 25% Tt= 50% tt=25%
b)
all tall
c)
TT= 75% tt = 25%
d)
Tt = 100%
51.
What is the dominant trait?
a)
yellow pea seeds
b)
green pea seeds
c)
there is no dominant seed
d)
Jolly green giant
52.

The blending of two traits is known as ---

a)

incomplete dominance

b)

codominance

53.

A condition in which both alleles for a gene are expressed so that both traits are visible is known as ---

a)

Codominance

b)

Incomplete dominance

54.

A calico cat shows both the traits for orange fur and black fur. What kind of allele expression is this?

a)

Incomplete dominance

b)

Codominance

55.

What type of Genotype is this: Hh

a)

Homozygous

b)

Heterozygous

56.

What type of Genotype is this: nn

a)

Homozygous

b)

Heterozygous

57.
Which terms best describe autotrophs?
a)
Plants; producers
b)
Animals; producers
c)
Plants; consumers
d)
Animals; consumers
58.
What is another name to describe a heterotroph?
a)
Consumer
b)
Producer
59.
Which terms best describe heterotrophs?
a)
Plants; producers
b)
Animals; producers
c)
Plants; consumers
d)
Animals; consumers
60.

Involves only one parent

a)

Asexual Reproduction

b)

Sexual Reproduction

c)

Diverse

d)

Uniform

61.

Which is NOT an Asexual reproduction DISADVANTAGE

a)

No genetic variation

b)

Only need one parent

c)

Bad characteristics are passed on

d)

difficult for organisms to adapt

62.

Which is NOT a Sexual reproduction DISADVANTAGE

a)

High genetic variation

b)

Can be complicated

c)

smaller population

d)

requires courtship or mating

63.

How do you tell if an object is in motion

a)

touching it

b)

reference points

c)

timing it

d)

pushing on it

64.

What is the net force?

a)

3 N

b)

3 N, right

c)

17 N, right

d)

3 N, left

65.
Who wins the tug of war with what net force?
a)
The person on the left with 20 N
b)
The person on the left with 80 N
c)
The people on the right with 20 N
d)
The people on the right with 100 N
66.
What is the net force?
a)
20 N 
b)
0 N 
c)
400 N 
d)
40 N 
67.
Which runner stopped for a rest?
a)
Albert
b)
Bob
c)
Charlie
68.
How long did one of the runner's rest?
a)
8 seconds
b)
13 seconds
c)
5 seconds
d)
50 seconds
69.
What does this graph represent?
a)
Constant speed
b)
Acceleration
c)
Not moving
70.
What does this graph represent?
a)
Constant Speed
b)
Acceleration
c)
Not moving
71.
What does this graph represent?
a)
Constant speed
b)
Acceleration
c)
Not moving
72.
What is happening at E?
a)
Stationary
b)
Accelerating
c)
Fast steady speed; moving away from the starting position
d)
Steady speed; returning to start position
73.

What is the definition of mechanical energy?

a)

the energy that an object has because of its position, shape, or chemical composition

b)

the sum of an object's kinetic and potential energy

c)

the transfer of energy to an object by using a force that causes the object to move in the direction of the force

74.

Where does this roller coaster have the MOST KINETIC energy?

a)

A

b)

B

c)

C

d)

D

75.
If the electric circuit is CLOSED, the switch is _______. 
a)
ON
b)
OFF
76.
The amount by which a machine multiplies input force is known as the 
a)
work.
b)
power.
c)
output force.
d)
mechanical advantage.
77.

Which is an example of an inclined plane?

a)

Rope

b)

Ramp

c)

Wheel chair

d)

Crowbar

78.

What is a fulcrum?

a)

The point about which a lever pivots

b)

A system of gears

c)

The push or pull that changes an objects motion

d)

Always in the middle of a lever

79.
An axe is an example of a
a)
pulley
b)
inclined plane
c)
screw
d)
wedge 
80.
Which type of energy increases when you compress a spring?
a)
elastic potential energy
b)
kinetic energy
c)
radiant energy
d)
sound energy
81.

Energy stored because of gravity is called:

a)

Gravitational Potential Energy

b)

Kinetic Energy

c)

Mechanical Advantage

d)

Chemical Energy

82.

At which point does the ball has the greatest gravitational potential energy (GPE)?

a)

A

b)

G

c)

D

d)

C

e)

G

83.

Which would have the LEAST gravitational potential energy (GPE)?

a)

A ball sitting on the ground

b)

Moon viewed from the Earth

c)

An airplane flying 30,000 feet above the ground

d)

A rock sitting on top of Mt. Everest

84.

Which blood cells carry oxygen throughout the body?

a)

Red

b)

White

c)

Plasma

d)

Platelets

85.

What is the yellowish liquid that carries nutrients and proteins through the body?

a)

Red

b)

White

c)

Plasma

d)

Platelets

86.

Which blood cells fight infection?

a)

Red

b)

White

c)

Plasma

d)

Platelets

87.

Which blood cells that help you stop bleeding if you get a cut?

a)

Red

b)

White

c)

Plasma

d)

Platelets

88.
When water falls through a dam and turns a turbine connected to a generator, electricity is produced. This electricity is often used to light our homes and offices. Which of the following shows the energy transformations that occurs?
a)
electrical → light → mechanical
b)
chemical → mechanical → electrical
c)
mechanical → chemical → light
d)
mechanical → electrical → light
89.
The Electrical Energy of the stove is transferred to _____ Energy.
a)
Solar
b)
Thermal
c)
Potential
d)
Electrical
90.

When water falls through a dam and turns a turbine connected to a generator, electricity is produced. The electricity is used to light a home. Which shows the energy transformation?

a)

electrical➡light➡mechanical

b)

chemical➡mechanical➡electrical

c)

mechanical➡chemical➡light

d)

mechanical➡electrical➡light

91.
Fruit fly body cells have 8 chromosomes. After mitosis, you would expect a resulting fruit fly daughter cell to have ...
a)
16 chromosomes.
b)
46 chromosomes.
c)
8 chromosomes.
d)
4 chromosomes.
92.

How many chromosomes are normally found in human body cells?

a)

46

b)

23

c)

26

d)

44

93.

During what phase of Mitosis do the chromosomes line up in the middle?

a)

Metaphase

b)

Prophase

c)

Telophase

d)

Anaphase

94.

What is the purpose of Mitosis?

a)

Growth of an organism and repair of damaged tissue

b)

To help the body get rid of extra cells

c)

To increase the amount of classwork you have to do

d)

To get rid of the nucleus

95.

Meiosis produces daughter cells that are genetically _________ each other.

a)

identical to

b)

different from

c)

superior to

d)

inferior to

96.

What is the purpose of meiosis?

a)

to help the organism grow

b)

to repair damaged cells

c)

to heal injuries

d)

to create diversity in offspring

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