AnswersFL-2002040-MJ Comprehensive Science 1 A-CRCumulative Exam

Cumulative Exam — Cumulative exam Answers

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21
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Examine the Venn diagram.

Question illustration
A
Cell swells
B
Cell shrinks
C
Cell bursts
D
Cell dissolves
22
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Fernanda is working on a physics project. She is experimenting by rolling a marble down a ramp and then seeing how far it rolls along the floor after leaving the ramp.Which would be the dependent variable in Fernanda’s experiments?

A
the angle of the ramp
B
the length of the ramp
C
the distance the marble rolls after the ramp
D
the direction that gravity makes the marble roll
23

Which example is most likely an organic compound?

A
water, which is a liquid found all over Earth
B
glucose, which is a sugar made by plants
C
gold, which is a metallic mineral
D
sodium chloride, which is a salt
24

A cell is put into a liquid and remains its original size. What is the best conclusion that can be drawn from this observation?

A
The concentration of water is higher in the cell than in the liquid, so water is leaving the cell.
B
The concentration of water is higher in the cell than in the liquid, so water is moving in and out of the cell at the same rate.
C
The concentration of water in the cell is the same as in the liquid, so water is moving in and out of the cell at the same rate.
D
The concentration of water in the cell is the same as in the liquid, so water is leaving the cell.
25

Between 1984 and 2003, scientists mapped the human genome, which means they determined the pattern of billions of genes that make a human a human. Originally, it took years to map a single person’s total genome. By 2014 multiple genomes could be mapped in one day.

A
a change to Mendel’s law of dominance
B
more powerful computer technology
C
the discovery of how germs work
D
new scientists repeating gene experiments
26

Which is most likely an example of pseudoscience?

A
A doctor’s study shows that insulin released constantly in the body regulated blood sugar better than injected insulin.
B
An experiment concludes that two populations of squirrels look similar but are not closely related.
C
Data shows that dogs live longer by using a certain brand of dog food.
D
Most people believe that drinking milk can soothe heartburn.
27

Which characteristics belong to all members of the domain Eukarya? Check all that apply.have a cell wallare unicellularare multicellularhave a nucleus or nucleihave a cell membrane

A
have a cell wall
B
are unicellular
C
are multicellular
D
have a nucleus or nuclei
E
have a cell membrane
28

Which term refers to the ability to do work?

A
energy
B
power
C
force
D
motion
29

Which organelles are designed to provide support and protection for the cell structure? Select three options. chloroplastscell wallnucleuscytoplasmcell membrane

A
chloroplasts
B
cell wall
C
nucleus
D
cytoplasm
E
cell membrane
30

The esophagus, stomach, and small intestines all function together to digest food and absorb nutrients. Which level of organization is being described?

A
cell
B
tissue
C
organ
D
organ system
31

Which image represents cytokinesis in a plant cell?

A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
32

Four groups of students plan scientific investigations to answer four questions for the science fair.Which question would most likely be answered with an experimental investigation?

Question illustration
A
1
B
2
C
3
D
4
33

How has the system of classifying organisms changed since Linnaeus’s work?

A
Levels have been taken away from the hierarchy.
B
Organisms have been identified simply as plants or animals.
C
More levels have been added to the hierarchy.
D
A hierarchy has been developed.
34

Since sugar comes from food, which system would directly affect blood sugar levels?

A
respiratory
B
muscular
C
skeletal
D
digestive
35

Which line of defense includes active immunity?

A
first
B
second
C
third
D
fourth
36

The ulna, radius, and humerus are the three bones of the arm. The elbow is formed where these bones meet. Which is another name for the elbow?

A
joint
B
tendon
C
cartilage
D
bone marrow
37

Which part of a neuron receives information from other neurons?

A
axon
B
dendrite
C
nucleus
D
axon terminals
38

Which best describes the movement through the nephron?

A
Blood is passed into the nephron and removed through the urethra.
B
All materials that exit the blood into the nephron are removed in the urine.
C
Some of the materials that exit the blood can be returned to the blood.
D
High quantities of sugars and water are excreted in the urine.
39

Which structure of the excretory system mainly functions in filtration?

A
ureter
B
kidney
C
urethra
D
bladder
40

Study the diagram of a cell.

Question illustration
A
W and X
B
W and Z
C
X and Y
D
Y and Z

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