Question 1

Relative to prokaryotic cells,eukaryotic cells are usually ______.

Accepted Answer

A)   larger and more complex
B)   smaller and simpler
C)   larger and equally complex
D)   smaller and more complexE) A) and B)
F) A) and C)

Question 2

A newly discovered multicellular organism obtains food by digesting dead organisms.Such an organism is most likely a member of the kingdom ______.

Accepted Answer

A)   Plantae
B)   Fungi
C)   Protista
D)   AnimaliaE) None of the above
F) A) and D)

Question 3

Which of these is most closely associated with Darwin?

Accepted Answer

A)   energy flow
B)   ecosystem structure
C)   the three domains of life
D)   natural selectionE) All of the above
F) B) and D)

Question 4

More than half of all known species are ______.

Accepted Answer

A)   plants
B)   insects
C)   bacteria
D)   vertebratesE) All of the above
F) A) and C)

Question 5

Antibiotic resistance evolves in bacteria because ______.

Accepted Answer

A)   the presence of antibiotics favors bacteria that already have genes for resistance
B)   farmers do not use enough antibiotics in animal feed
C)   the antibiotics create resistance genes in bacteria
D)   none of the aboveE) B) and C)
F) C) and D)

Question 6

What is a gene?

Accepted Answer

A)   a type of eukaryotic cell
B)   an organelle that houses DNA
C)   a type of prokaryotic cell
D)   a unit of inheritanceE) C) and D)
F) B) and D)

Question 7

Which of the following structures can perform all the activities required for life?

Accepted Answer

A)   DNA molecules
B)   cells
C)   organelles
D)   nucleiE) None of the above
F) A) and D)

Question 8

You try to start your car,but it does not start.Which of these is a prediction?

Accepted Answer

A)   My car's battery is dead.
B)   If I recharge the battery, then my car will start.
C)   My car is too old to function properly.
D)   What is wrong with my car?E) None of the above
F) All of the above

Question 9

What accounts for the different breeds of domesticated dogs?

Accepted Answer

A)   overproduction
B)   natural selection
C)   competition
D)   artificial selectionE) A) and C)
F) All of the above

Question 10

You try to start your car,but it does not start.Which of these is a hypothesis?

Accepted Answer

A)   My car's battery is dead.
B)   If I recharge the battery, then my car will start.
C)   My car is too old to function properly.
D)   What is wrong with my car?E) A) and B)
F) B) and C)

Question 11

Which of these would be a valid hypothesis?

Accepted Answer

A)   Human history is determined by a series of supernatural events.
B)   Humans should help in the conservation of other animal species.
C)   Humans are controlled by forces beyond our understanding.
D)   Humans and bacteria share a common genetic code.E) All of the above
F) B) and D)

Question 12

How do hypotheses differ from theories?

Accepted Answer

A)   Theories are more comprehensive than hypotheses.
B)   Theories must be testable; hypotheses do not need to be testable.
C)   Hypotheses are educated guesses, and theories are tentative explanations.
D)   Hypotheses are derived from experimentation, whereas theories are derived from observation.E) A) and D)
F) A) and C)

Question 13

Over a span of two decades,scientists measured changes in the beak size of a population of Galápagos ground finches.This ______.

Accepted Answer

A)   provided evidence of natural selection in action
B)   is an example of artificial selection
C)   is an example of overproduction
D)   led Darwin to his theory of evolution through natural selectionE) None of the above
F) All of the above

Question 14

Which of these is required for natural selection to occur?

Accepted Answer

A)   inheritance
B)   unequal reproductive success
C)   individual variation
D)   all of the aboveE) A) and B)
F) B) and C)

Question 15

Humans are ______.

Accepted Answer

A)   producers
B)   producers and consumers
C)   consumers
D)   producers and decomposersE) C) and D)
F) B) and D)

Question 16

Which of the following is not a property of life?

Accepted Answer

A)   Populations of organisms rarely change over time.
B)   Living things exhibit complex but ordered organization.
C)   Organisms take in energy and use it to perform all of life's activities.
D)   Organisms reproduce their own kind.E) C) and D)
F) A) and B)

Question 17

In a scientific experiment,the control group ______.

Accepted Answer

A)   serves as a basis of comparison with the experimental group
B)   is subjected to the factor whose effect is being tested
C)   allows for the simultaneous testing of multiple variables
D)   is required for the validity of discovery scienceE) B) and D)
F) All of the above

Question 18

Which of the following are the proper components of the scientific method?

Accepted Answer

A)   experiment, conclusion, application
B)   question, observation, experiment, analysis, prediction
C)   observation, question, hypothesis, prediction, experiment, results, conclusion
D)   observation, question, opinion, conclusion, hypothesisE) B) and C)
F) A) and D)

Question 19

In what way(s) is the science of biology influencing and changing our culture?

Accepted Answer

A)   by helping us understand the relevance of evolution to human health
B)   by revealing how mutations in genes can lead to disease
C)   by providing new tools for forensic investigations
D)   all of the aboveE) All of the above
F) A) and B)

Question 20

A hypothesis is a(n) ______.

Accepted Answer

A)   tentative answer to a question
B)   guess
C)   observation
D)   theoryE) None of the above
F) A) and D)

Exam 1: Introduction- Biology Today

In a scientific experiment,the control group ______.

Correct AnswerverifiedShow Answer

Which of the following is not a property of life?

Correct AnswerverifiedShow Answer

A hypothesis is a(n) ______.

Correct AnswerverifiedShow Answer

Which of these would be a valid hypothesis?

Correct AnswerverifiedShow Answer

Which of these is most closely associated with Darwin?

Correct AnswerverifiedShow Answer

You try to start your car,but it does not start.Which of these is a prediction?

Correct AnswerverifiedShow Answer

Humans are ______.

Correct AnswerverifiedShow Answer

Which of the following are the proper components of the scientific method?

Correct AnswerverifiedShow Answer

How do hypotheses differ from theories?

Correct AnswerverifiedShow Answer

A newly discovered multicellular organism obtains food by digesting dead organisms.Such an organism is most likely a member of the kingdom ______.

Correct AnswerverifiedShow Answer

Antibiotic resistance evolves in bacteria because ______.

Correct AnswerverifiedShow Answer

What is a gene?

Correct AnswerverifiedShow Answer

Relative to prokaryotic cells,eukaryotic cells are usually ______.

Correct AnswerverifiedShow Answer

Over a span of two decades,scientists measured changes in the beak size of a population of Galápagos ground finches.This ______.

Correct AnswerverifiedShow Answer

More than half of all known species are ______.

Correct AnswerverifiedShow Answer

Which of these is required for natural selection to occur?

Correct AnswerverifiedShow Answer

What accounts for the different breeds of domesticated dogs?

Correct AnswerverifiedShow Answer

You try to start your car,but it does not start.Which of these is a hypothesis?

Correct AnswerverifiedShow Answer

Which of the following structures can perform all the activities required for life?

Correct AnswerverifiedShow Answer

In what way(s) is the science of biology influencing and changing our culture?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified