1. Find the average for the following numbers: 12, 14, 22, 18, and 19.
a. 17
b. 85
c. 21.25
d. 28.33
2. Luis was investigating which arm (left or right) would be able to use a
bow and arrow and hit a target most accurately. He gathered 50
people from School A to shoot at the target with their right arm. He
gathered 50 people from School B to shoot at the target with their left
arm. Which of the following is a true statement about this
investigation.
a. The dependent variable is the hand used to shoot the bow and
arrow.
b. A constant variable is the people shooting the arrows.
c. The testable question might be, “If the people shoot with their right hand, they will be able to hit the
target more accurately because they have more control using their dominant hand.”
d. This is not a testable question because there are two independent variables (hand used and school).
3. What kind of graph would you make out of the experiment in question 2?
a. Line
b. Bar
c. Pie
d. None of the above
4. What is the primary function of the nervous system?
a. To aid the body in movement and posture
b. To take in information from a stimulus, process it, and perform an appropriate response
c. To spread oxygen through blood vessels for body cells that need it
d. To protect other major organs including the heart, lungs, and stomach
5. What belongs at point X?
a. Cells include a cell wall and cell membrane
b. Cells include chloroplast and mitochondria
c. Cells include cytoplasm and lysosomes
d. Cells include cell wall and chloroplast
Elm Tree
Both
-performs
-has DNA
photosynthesis in the
nucleus
-provides a
-X
habitat for
animals
Hawk
- lays eggs
-hunts for
food
15
Force (N)
6. Worker A pushed a box 2 meters, in 3 sec. Worker B
carried a box 5 meters in 4 sec. Worker C moved a
box 3 meters in 2 sec. Who did the most work?
a. Worker A
b. Worker B
c. Worker C
d. Nobody did any work
12
8
10
5
5
0
Workers
A
7. There is one kind of protein in foods like steak, and
a different kind of protein made in the ribosome.
a. True
b. False
8. Which person did the most work?
a. A person carries a bag 5 meters in 2 seconds.
b. A person pushes a bag 4 meters with 3N of force.
c. A person holds a bag for 5 minutes and uses 4N of force.
d. A person lifts a bag 8 meters with a force of 3N.
B
C
9. Which of the following would be most likely to have the highest density of mitochondria?
a. Brain cell, because it needs a lot of energy to move
b. Muscle cell, because it needs extra food
c. Cardiac cell, because it needs extra energy to keep the heart beating
d. Cardiac cell, because it needs extra food to keep the heart beating
Felicia is checking her breathing rate after various amounts of
exercise. She creates the graph on the right. Use the graph for
questions 10-12.
40
Breaths per minute
10. Which of the following body systems is she focused on the
most?
a. Nervous
b. Respiratory
c. Circulatory
d. Integumentary
Breathing Rate Over Time
30
20
10
0
0
11. When is the breaths per minute experiencing the greatest
change?
a. After 30 minutes
b. After 40 minutes
c. Between 10-30 minutes
d. Between 0-10 minutes
12. Which of the following trends from the graph is correct?
a. Exercise increases rapidly, then remains relatively constant
b. As exercise increases, breathing rate increases
c. As exercise decreases, breathing rate increases
d. Exercise decreases rapidly, then remains relatively constant
5
10
25
30
Minutes of exercise
35
40
13. Which organelle is responsible for homeostasis?
a. Cell wall
b. Cytoplasm
c. Chloroplast
d. Cell membrane
14. A woman puts a 12 kg basket of clothes on her head as she walks toward her room. She uses 33N of force, walks
10 meters, and arrives after 12 seconds. How much work does she do?
a. 144 J
b. 330 N
c. 330 J
d. 0 Joules
15. Lysosomes are responsible for breaking down old cell parts are removing waste from the cell. Which cells in the
body would have extra lysosomes to perform its function?
a. Neurons (brain cells)
b. Cardiac cells (heart cells)
c. Skin cells
d. White blood cells
16. Plant cells and animal cells are both able toa. Move on their own within a tissue
b. Make their own food using the energy from sunlight
c. Protect themselves from intruders or harmful substances
d. None of the above
17. True or false. Cells must be able to transform food molecules into energy as well as eliminate waste.
a. True
b. False
18. Which of the following represents chemical digestion?
a. Hydrochloric acid breaking down food in the stomach
b. Pushing food from the esophagus to the stomach
c. Churning food in the stomach
d. Pushing food out of the body in the rectum
19. True or false, the energy cells need comes from the mitochondria transforming food into protein.
a. True
b. False
20. Consuelo gets a disease that affects her ureters, kidneys, and urethra. Which level of organization is affected by
this disease?
a. Cells
b. Tissues
c. Organs
d. Organ system
21. True or false. All organisms are made of cells, tissues, organs, and organ systems.
a. True
b. False
22. True or false. A muscle is an organ in the human body and the lungs are a tissue.
a. True
b. False
23. Which of the following is a true statement.
a. The DNA in your skin cells is different than you eye cells.
b. The cells in your body all perform identical functions
c. Multi-cellular organisms have trillions of cells, all with specialized functions
d. None of the above
24. Most of the breakdown of food occurs in the mouth and stomach. Which of the following are physical changes
(mechanical digestion)?
a. Teeth grinding and stomach churning
b. Teeth grinding and stomach acid breaking down food
c. Stomach churning and saliva breaking down food
d. Stomach acid and saliva breaking down food
25. True or false. Tissues are made of multiple organs that perform a similar function.
a. True
b. False
26. A giraffe’s physical traits includes having long legs, a long neck, and spots on its fur. Which structures ultimately
have the information expressed in a giraffe’s physical traits?
a. nuclei
b. daughter cells
c. genes
d. spindle fibers
27. The illustration below shows an organism reproducing. Which statement about this type of reproduction is true?
a. The two offspring produced will not be genetically identical to the parent.
b. The two offspring produced will be genetically identical to the parent.
c. This type of reproduction is sexual reproduction.
d. This type of reproduction produces offspring that are genetically different than the parent.
28. The offspring of two plants inherit traits from their parents, such
as flower color, leaf shape, and the size of fruit it produces. In
which organelle are the genes that that contain information
about these traits found?
a. 1
b. 2
c. 3
d. 4
29. Jordan needs to do a project about DNA. He decides to make a model of
the part of DNA that represents the instructions for a single trait. Which
part of the diagram below should Ari model?
a. 1 and 2
b. 2 and 3 only
c. 2 and 4 only
d. 2, 3, and 4 only
Though scientists were able to see chromosomes under the microscope as early as the
1870s, they did not know that chromosomes carried the genetic material until the early
20th century. At about that time, two scientists—Walter Sutton and Theodor Boveri—
independently recognized that chromosomes pass from one generation to the next
generation. Both found evidence that chromosome number was reduced in the sex cells and
then restored following the fusion of egg and sperm. This reduction event kept the
chromosome number constant in the offspring.
30. What did Sutton and Boveri see happening in the sex cells during fusion?
a. Genetic variation
b. Sexual reproduction
c. Asexual reproduction
d. Chromosome deformation
A biologist designed an investigation on how a species of desert lizard adapts to a new
environment. She released two male and two female lizards onto a small island in the middle
of the ocean. The island had suitable food for the lizards, but was not a desert. Instead, the
island was covered in trees. It also contained ground snakes that preyed on the lizards. After
five years, the biologist visited the island again. She observed that a large population of
lizards now lived on the island. Most of the new lizards had shorter legs and stickier feet than
the original desert lizards. This allowed them to climb trees. The biologist hypothesized that
this change allowed the lizards to escape their predator.
31. Identify the changes in the traits of the population of desert lizards on the island.
a. Having longer legs allowed the lizards to run faster and escape from the ground snakes. After living on
the island for five years, most of the new lizards had longer legs than the original lizards.
b. The lizards were used to living in a desert and eating insects. Eventually, the lizards on the island learned
to eat the ground snakes to survive.
c. Lizards with shorter legs and stickier feet could escape the ground snakes, survive longer, and
reproduce. Eventually, most of the lizards on the island had shorter legs and stickier feet.
d. The only change in the population of desert lizards was that many more of them were born.
Male peacocks have brightly colored green and blue tails that spread out to form a large fan
shape. Female peahens are dull green, grey, and brown. Females choose a mate based on
how large and bright his tail is. Centuries ago, male peacocks were not as colorful as they
are today.
32. Identify the most likely reason why male peacocks now are brighter and more colorful than peacocks used to be.
a. Hundreds of years ago, the peacocks lived in environments that were dull grey and brown, so peacocks
were also grey and brown. Today, most environments have bright colors, so peacocks have evolved to
match.
b. Male peacocks with large colorful tails were more likely to attract a female and have offspring. Over
time, more and more male peacocks were born having large colorful tails.
c. Peacocks that had larger and brighter tails needed more food to survive than other peacocks, so they
died sooner. As a result, more and more peacocks were born with large, bright tails.
d. Female peahens with brightly colored tails attract more males and can choose the best male with which
to mate. As a result, their offspring are healthier and have a brighter color.
33. There are 13 species of finches found on the Galápagos
Islands. These finches have a wide variety of food
sources and beak shapes. There is one genetically
similar species of finch found on the South American
mainland. Which genetic trait has changed the most
between the South-American finch and the three types
found on the Galápagos Islands?
a. Beak shape
b. Eye color
c. Food sources
d. Geographic location
A species of moth in England has both a light-colored form and a dark-colored form. In the mid-1800s, the
percentage of dark-colored moths increased in areas where black soot from factories covered the trees. The soot in
these areas has decreased in more recent times as a result of pollution laws.
34. Which of the following statements describes what has most likely happened to the moth populations in these
areas?
a. The moth populations went extinct.
b. The moth populations migrated south.
c. The percentage of light-colored moths in the populations decreased.
d. The percentage of dark-colored moths in the populations decreased.
The Galapagos pink land iguana is native to only one of the Galapagos Islands. Its entire
range is currently limited to Wolf Volcano on Isabella Island. The iguana was first
discovered on this island in 1986. Genetic studies of the animal began sometime later,
and it was identified as a species separate from other iguana populations on the
Galapagos in 2009. Its population might have been as high as 100 in 1986, but now there
might be as few as 10 of the animals left alive. Other evidence indicates that this species
could have diverged from another line of iguanas about 5.7 million years ago. After that,
the other line of iguanas diverged into two other species.
35. In the future, the current population of about ten pink land iguanas will probably-
a. Migrate in order to survive
b. Become extinct because they do not have enough genetic diversity
c. Undergo evolution by natural selection
d. Become extinct because they have too much genetic diversity
36. Percy wants to identify a tree in his backyard. He has the leaf shown. Based on the dichotomous key, what is the
tree?
a. Black walnut
b. Birch
c. Magnolia
d. Redbud
1.a. Leaf has several leaflets
Go to Step 2
1.b. Leaf is a single, simple leaf
Go to Step 3
2.a. Leaflets attached at several points
black walnut
2.b. Leaflets attached at one point.
white clover
3.a. Veins branch out
Go to Step 4
3.b. One vein through the center
Go to Step 5
4.a. Leaf is heart-shaped
redbud
4.b. Leaf is star-shaped
sugar maple
5.a. Leaf has a smooth edge
magnolia
5.b. Leaf has a jagged edge
birch
2.