Question 1

Over time,the lineage that led to modern whales shows a change from four-limbed land animals to aquatic animals with two limbs that function as flippers.This change is best explained by which of the following concepts or processes?

Accepted Answer

A)  an emergent property
B)  reductionism
C)  the hierarchy of the biological organization of life
D)  natural selectionE) A) and B)
F) A) and C)

Question 2

Strong evidence in support of the common ancestry of all life comes from which of the following observations about living things?

Accepted Answer

A)  the fact that decomposers include both bacteria and fungi
B)  the ability of plants to convert light energy to chemical energy
C)  the existence of a nearly universal genetic code
D)  the universal use of protein catalysts by all cellsE) A) and B)
F) A) and C)

Question 3

Which of the following descriptions constitutes a controlled experiment?

Accepted Answer

A)  using a microscope to observe organisms present in a sample of pond water and recording the number of each type of organism observed
B)  setting up a bird feeder and compiling a list of all of the bird species seen at the feeder over a period of several weeks
C)  growing one set of 10 seedlings under white light and one set of the same type of seedlings under red light and measuring their growth over a period of two weeks
D)  growing one set of 10 seedlings under white light at 30°C and one set of a different type of seedlings under red light at 25°C and measuring their growth over a period of two weeksE) All of the above
F) B) and C)

Question 4

All the living organisms in a particular area along with all the nonliving aspects of the environment with which organisms interact are collectively described by which of the following terms?

Accepted Answer

A)  an ecosystem
B)  the biosphere
C)  a biological community
D)  a populationE) A) and B)
F) A) and C)

Question 5

A single-celled organism isolated from a deep-sea,hot thermal vent was found to have a cell wall but lacked a nucleus.This organism is most likely a member of which of the following domains?

Accepted Answer

A)  Eukarya
B)  Archaea
C)  Animalia
D)  Plantae
E)  FungiF) A) and E)
G) D) and E)

Question 6

Approximately what proportion of the carbon dioxide (CO2) released by burning fossil fuels remains in the atmosphere,contributing to the trapping of heat close to Earth's surface?

Accepted Answer

A)  less than 1%
B)  5%
C)  50%
D)  90%E) None of the above
F) A) and D)

Question 7

Which of the following is the best description of a control for an experiment?

Accepted Answer

A)  The control group is kept in an unchanging environment.
B)  The control group is left alone by the experimenters.
C)  The control group is matched with the experimental group except for the one experimental variable.
D)  The control group is exposed to only one variable rather than several.E) A) and B)
F) A) and C)

Question 8

Charles Darwin proposed that "descent with modification" resulted when organisms of a particular species become adapted to their environment because they possess which of the following characteristics?

Accepted Answer

A)  nonheritable traits that enhance survival and decrease their reproductive success in the local environment
B)  nonheritable traits that enhance their survival and reproductive success in the local environment
C)  heritable traits that enhance their survival and reproductive success in the local environment
D)  heritable traits that enhance their survival and decrease their reproductive success in the local environmentE) A) and B)
F) A) and C)

Question 9

Which of the following best describes the logic of scientific inquiry?

Accepted Answer

A)  If I generate a testable hypothesis,tests and observations will support it.
B)  If my prediction is correct,it will lead to a testable hypothesis.
C)  If my observations are accurate,they will support my hypothesis.
D)  If my hypothesis is correct,I can expect certain test results.E) B) and C)
F) C) and D)

Question 10

The process of science involves testing which of the following?

Accepted Answer

A)  a data set
B)  a hypothesis
C)  an observation
D)  a conclusion
E)  a control groupF) A) and B)
G) B) and E)

Question 11

Living things are divided into three different domains.Which of these domains are classified as prokaryotes?

Accepted Answer

A)  Bacteria and Eukarya
B)  Archaea and Eukarya
C)  Bacteria and Fungi
D)  Bacteria and ArchaeaE) None of the above
F) B) and D)

Question 12

Why is it important that an experiment include a control group?

Accepted Answer

A)  A control group provides a reference by which to determine if a particular outcome may reasonably result from the variable being tested.
B)  The control group provides a reserve of experimental subjects.
C)  A control group is required for the development of an "If ...then" statement.
D)  A control group assures that an experiment will be repeatable.E) A) and D)
F) None of the above

Question 13

Imagine there is a species-specific fishing regulation that mandates that only adult fish of this species that are 75 cm or longer may be kept;shorter fish must be released.Based on your knowledge of natural selection,how would you predict that the average length of the adult fish population might be affected?

Accepted Answer

A)  Length would remain unchanged.
B)  Length would gradually decrease.
C)  Length would rapidly decrease.
D)  Length would gradually increase.
E)  Length would rapidly increase.F) B) and D)
G) B) and E)

Question 14

The primary source of energy for producers in an ecosystem is

Accepted Answer

A)  light energy.
B)  kinetic energy.
C)  thermal energy.
D)  chemical energy.E) B) and D)
F) A) and B)

Question 15

Investigating the molecular structure of DNA in order to understand the chemical basis of inheritance is an example of which approach utilized in the study of biology?

Accepted Answer

A)  systems biology
B)  emergent properties
C)  reductionism
D)  deductive reasoningE) A) and B)
F) B) and D)

Question 16

Which of the following statements describes a controlled experiment?

Accepted Answer

A)  an experiment that is repeated many times to ensure that the results are accurate
B)  an experiment that proceeds at a slow pace to guarantee that the scientist can carefully observe all reactions and process all experimental data
C)  an experiment with at least two groups,one of which does not receive the experimental treatment
D)  an experiment with at least two groups,one differing from the other by two or more variablesE) B) and D)
F) A) and C)

Exam 1: Introduction: Evolution and the Foundations of Biology

Investigating the molecular structure of DNA in order to understand the chemical basis of inheritance is an example of which approach utilized in the study of biology?

Correct Answer
verified

Approximately what proportion of the carbon dioxide (CO₂) released by burning fossil fuels remains in the atmosphere,contributing to the trapping of heat close to Earth's surface?

Correct Answer
verified

Living things are divided into three different domains.Which of these domains are classified as prokaryotes?

Correct Answer
verified

Correct Answer
verified

Which of the following statements describes a controlled experiment?

Correct Answer
verified

Which of the following best describes the logic of scientific inquiry?

Correct Answer
verified

Over time,the lineage that led to modern whales shows a change from four-limbed land animals to aquatic animals with two limbs that function as flippers.This change is best explained by which of the following concepts or processes?

Correct Answer
verified

All the living organisms in a particular area along with all the nonliving aspects of the environment with which organisms interact are collectively described by which of the following terms?

Correct Answer
verified

The primary source of energy for producers in an ecosystem is

Correct Answer
verified

A single-celled organism isolated from a deep-sea,hot thermal vent was found to have a cell wall but lacked a nucleus.This organism is most likely a member of which of the following domains?

Correct Answer
verified

Which of the following is the best description of a control for an experiment?

Correct Answer
verified

The process of science involves testing which of the following?

Correct Answer
verified

Why is it important that an experiment include a control group?

Correct Answer
verified

Strong evidence in support of the common ancestry of all life comes from which of the following observations about living things?

Correct Answer
verified

Charles Darwin proposed that "descent with modification" resulted when organisms of a particular species become adapted to their environment because they possess which of the following characteristics?

Correct Answer
verified

Which of the following descriptions constitutes a controlled experiment?

Correct Answer
verified

Exam 1: Introduction: Evolution and the Foundations of Biology

Investigating the molecular structure of DNA in order to understand the chemical basis of inheritance is an example of which approach utilized in the study of biology?

Correct AnswerverifiedShow Answer

Approximately what proportion of the carbon dioxide (CO2) released by burning fossil fuels remains in the atmosphere,contributing to the trapping of heat close to Earth's surface?

Correct AnswerverifiedShow Answer

Living things are divided into three different domains.Which of these domains are classified as prokaryotes?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Which of the following statements describes a controlled experiment?

Correct AnswerverifiedShow Answer

Which of the following best describes the logic of scientific inquiry?

Correct AnswerverifiedShow Answer

Over time,the lineage that led to modern whales shows a change from four-limbed land animals to aquatic animals with two limbs that function as flippers.This change is best explained by which of the following concepts or processes?

Correct AnswerverifiedShow Answer

All the living organisms in a particular area along with all the nonliving aspects of the environment with which organisms interact are collectively described by which of the following terms?

Correct AnswerverifiedShow Answer

The primary source of energy for producers in an ecosystem is

Correct AnswerverifiedShow Answer

A single-celled organism isolated from a deep-sea,hot thermal vent was found to have a cell wall but lacked a nucleus.This organism is most likely a member of which of the following domains?

Correct AnswerverifiedShow Answer

Which of the following is the best description of a control for an experiment?

Correct AnswerverifiedShow Answer

The process of science involves testing which of the following?

Correct AnswerverifiedShow Answer

Why is it important that an experiment include a control group?

Correct AnswerverifiedShow Answer

Strong evidence in support of the common ancestry of all life comes from which of the following observations about living things?

Correct AnswerverifiedShow Answer

Charles Darwin proposed that "descent with modification" resulted when organisms of a particular species become adapted to their environment because they possess which of the following characteristics?

Correct AnswerverifiedShow Answer

Which of the following descriptions constitutes a controlled experiment?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Approximately what proportion of the carbon dioxide (CO₂) released by burning fossil fuels remains in the atmosphere,contributing to the trapping of heat close to Earth's surface?

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