Question 1

In the section "Investigating Life: The Orchid and the Moth," what is the advantage to the sphinx moth Xanthopan morgani of having an 8-inch long tongue?

Accepted Answer

A)  It is used to attract mates through sexual selection.
B)  It can pollinate only one type of flower.
C)  It makes flying more efficient.
D)  It can be used to capture other flying insects for fooD.
E)  It can reach nectar that no other pollinator can reach.F) B) and C)
G) All of the above

Question 2

The bacterium S.aureus belongs to which domain?

Accepted Answer

A)  Eukarya
B)  Archaea
C)  Prokarya
D)  Protista
E)  BacteriaF) B) and E)
G) D) and E)

Question 3

The cell is the basic unit of life.

Accepted Answer

A) True 
 B)False  True

Question 4

Which of the following is false about a hypothesis?

Accepted Answer

A)  It can be proven true.
B)  It can be proven false.
C)  It is a tentative explanation.
D)  It is based on previous knowledge.
E)  It must be testable to be useful.F) A) and B)
G) None of the above

Question 5

Which of the following is not a "control" in an experimental procedure?

Accepted Answer

A)  a placebo
B)  a known standard of comparison
C)  a normal group
D)  an experimental group
E)  a "zero"-value groupF) A) and D)
G) D) and E)

Question 6

In an experiment designed to determine if a fertilizer increased crop yield in tomato plants,the number of tomatoes produced by each plant would be the independent variable.

Accepted Answer

A) True 
 B)False

Question 7

Which of the following are dependent variables in this experiment?

Accepted Answer

A)  the strain of S.aureus
B)  the dose of methicillin
C)  the agar plates
D)  survival in the presence of methicillin
E)  the time of bacterial growthF) B) and C)
G) A) and B)

Question 8

A major difference between prokaryotes and eukaryotes is that prokaryotes

Accepted Answer

A)  have cell walls and other organisms do not.
B)  do not have a nucleus in their cells and other organisms do.
C)  have a nucleus in their cells and other organisms do not.
D)  are autotrophs and other organisms are not.
E)  are not living organisms,while eukaryotes arE.F) All of the above
G) B) and D) B

Question 9

What is the purpose of a control in an experiment?

Accepted Answer

A)  provides a basis for comparison
B)  provides tentative explanations for an observation
C)  provides a large sample size
D)  provides a small sample size
E)  provides wide range of variations in the independent variableF) A) and B)
G) B) and D)

Question 10

Which of the following are dependent variables in this experiment?

Accepted Answer

A)  Amount of ammonium nitrate and light
B)  Amount of carbon dioxide
C)  Amount of water
D)  Height of the plants
E)  Height of the plants and amount of lightF) C) and D)
G) B) and E)

Question 11

Which of the following is not a testable hypothesis?

Accepted Answer

A)  What is the meaning of life?
B)  Why is the sky the color blue?
C)  What causes species extinctions?
D)  How did I start from only an egg and sperm?
E)  Why is too much fatty food bad for me?F) D) and E)
G) B) and E)

Question 12

How did some of the original strain of S.aureus bacteria survive in the presence of methicillin?

Accepted Answer

A)  The methicillin caused mutations in the bacteriA.
B)  They had pre-existing mutations that provided resistance.
C)  The methicillin was no longer active.
D)  The methicillin may not have been added to those plates.
E)  The bacteria wanted to survive the antibiotic and mutated to become resistant.F) A) and E)
G) A) and D)

Question 13

What is the purpose of taxonomy?

Accepted Answer

A)  to name and classify living organisms
B)  to organize levels of biology from atom to biosphere
C)  to predict the outcome of experiments
D)  to explain how or why a phenomenon occurred
E)  to explain how life beganF) B) and D)
G) B) and C)

Question 14

Decomposers are a special group of producers.

Accepted Answer

A) True 
 B)False

Question 15

The leaf of a strawberry plant is

Accepted Answer

A)  an organ.
B)  a molecule.
C)  an organelle.
D)  a cell.
E)  an organism.F) C) and D)
G) D) and E)

Question 16

A structure consisting of tissues organized to carry out a specific function defines a(n)

Accepted Answer

A)  organ.
B)  cell.
C)  population.
D)  atom.
E)  moleculE.F) B) and C)
G) A) and B)

Question 17

What are the independent variables in this experiment?

Accepted Answer

A)  the strain of S.aureus
B)  the dose of methicillin
C)  survival in the presence of methicillin
D)  the agar plates
E)  the time of bacterial growthF) B) and E)
G) A) and B)

Question 18

In an experiment designed to measure the distance a golf ball is hit by clubs made of different material,the dependent variable is

Accepted Answer

A)  the distance the golf ball travels.
B)  the type of material the club is made of.
C)  the wind direction when the experiment takes place.
D)  the type of material the golf ball is made of.
E)  the speed of the golf club prior to hitting the golf ball.F) A) and B)
G) C) and D)

Question 19

How do you know the computer you are working on is not alive?

Accepted Answer

A)  It is not made of cells.
B)  It does not maintain an internal consistency of water,solutes,and other components.
C)  It cannot reproduce,asexually or sexually.
D)  It cannot evolve.
E)  All answers are correct.F) A) and C)
G) B) and E) E

Question 20

Which of the following is FALSE about experiments?

Accepted Answer

A)  The larger the sample size the more meaningful the results.
B)  The smaller the sample size the more meaningful the results.
C)  An experiment is not valid without the proper control.
D)  It is important to standardize aspects of an experiment which might affect the outcome,other than the independent variable.
E)  All answers are correct.F) A) and D)
G) C) and D)

Exam 1: Scientific Study of Life

In the section "Investigating Life: The Orchid and the Moth," what is the advantage to the sphinx moth Xanthopan morgani of having an 8-inch long tongue?

Correct AnswerverifiedShow Answer

The bacterium S.aureus belongs to which domain?

Correct AnswerverifiedShow Answer

The cell is the basic unit of life.

Correct AnswerverifiedTrue

Which of the following is false about a hypothesis?

Correct AnswerverifiedShow Answer

Which of the following is not a "control" in an experimental procedure?

Correct AnswerverifiedShow Answer

In an experiment designed to determine if a fertilizer increased crop yield in tomato plants,the number of tomatoes produced by each plant would be the independent variable.

Correct AnswerverifiedShow Answer

Which of the following are dependent variables in this experiment?

Correct AnswerverifiedShow Answer

A major difference between prokaryotes and eukaryotes is that prokaryotes

Correct AnswerverifiedB

What is the purpose of a control in an experiment?

Correct AnswerverifiedShow Answer

Which of the following are dependent variables in this experiment?

Correct AnswerverifiedShow Answer

Which of the following is not a testable hypothesis?

Correct AnswerverifiedShow Answer

How did some of the original strain of S.aureus bacteria survive in the presence of methicillin?

Correct AnswerverifiedShow Answer

What is the purpose of taxonomy?

Correct AnswerverifiedShow Answer

Decomposers are a special group of producers.

Correct AnswerverifiedShow Answer

The leaf of a strawberry plant is

Correct AnswerverifiedShow Answer

A structure consisting of tissues organized to carry out a specific function defines a(n)

Correct AnswerverifiedShow Answer

What are the independent variables in this experiment?

Correct AnswerverifiedShow Answer

In an experiment designed to measure the distance a golf ball is hit by clubs made of different material,the dependent variable is

Correct AnswerverifiedShow Answer

How do you know the computer you are working on is not alive?

Correct AnswerverifiedE

Which of the following is FALSE about experiments?

Correct AnswerverifiedShow Answer

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True

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B

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E

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