Question 1

Match between columns
                        Premises: temporal mechanisms
mechanical mechanisms
behavioral mechanisms
postfertilization mechanisms
chemical mechanisms

Accepted Answer

The Answer of Members of different species produce different phermones. is...

Question 2

Which of the following is not true of the punctuated equilibrium theory?

Accepted Answer

A) It was inspired in part by patterns observed in the fossil record. 
B) It proposes that most evolutionary change is concentrated in relatively brief episodes of change. 
C) It suggests that subgroups diverge and evolve at about equal and constant rates. 
D) It suggests that most species undergo little phenotypic change during most of their evolutionary duration. 
E) It appears to be well supported by the fossil record. 
A) It was inspired in part by patterns observed in the fossil record. 
B) It proposes that most evolutionary change is concentrated in relatively brief episodes of change. 
C) It suggests that subgroups diverge and evolve at about equal and constant rates. 
D) It suggests that most species undergo little phenotypic change during most of their evolutionary duration. 
E) It appears to be well supported by the fossil record.

Question 3

Which of the following statements about natural selection is true?

Accepted Answer

A) Natural selection causes variations to arise within a population. 
B) Natural selection leads to increased likelihood of survival for certain individuals based on variation.The variation must come from outside the population. 
C) All individuals within a population have an equal likelihood of survival.Survival is based on chance. 
D) Natural selection results in those individuals within a population who are best-adapted surviving and producing more offspring. 
E) Natural selection leads to extinction. 
A) Natural selection causes variations to arise within a population. 
B) Natural selection leads to increased likelihood of survival for certain individuals based on variation.The variation must come from outside the population. 
C) All individuals within a population have an equal likelihood of survival.Survival is based on chance. 
D) Natural selection results in those individuals within a population who are best-adapted surviving and producing more offspring. 
E) Natural selection leads to extinction.

Question 4

Match between columns
                        Premises: temporal mechanisms
behavioral mechanisms
mechanical mechanisms
chemical mechanisms
postfertilization mechanisms

Accepted Answer

The Answer of Members of different species produce different phermones. is...

Question 5

Which of the following is the best description of an adaptation?

Accepted Answer

A) a trait that was beneficial to survival in the past 
B) a trait that is currently beneficial to survival 
C) a trait that will be beneficial in the future 
D) a trait that is of no advantage to survival 
E) an environmental change that selects for certain traits 
A) a trait that was beneficial to survival in the past 
B) a trait that is currently beneficial to survival 
C) a trait that will be beneficial in the future 
D) a trait that is of no advantage to survival 
E) an environmental change that selects for certain traits

Question 6

Provide evidence for the following statement. "At the time of Darwin's journey, geology was more influential in the development of evolutionary thought than was biology."

Accepted Answer

Responses should discuss the discovery o

Question 7

What can we learn about evolution of the vertebrates by examination of embryos?

Accepted Answer

The embryos of verte

Question 8

Homologous organs

Accepted Answer

A) are the results of very different genetic blueprints. 
B) can have different functions. 
C) show structural differences in the embryos but are similar in the adult organisms. 
D) are only found within a species. 
E) have the same function. 
A) are the results of very different genetic blueprints. 
B) can have different functions. 
C) show structural differences in the embryos but are similar in the adult organisms. 
D) are only found within a species. 
E) have the same function.

Question 9

Although Lamarck's hypothesis was wrong, it is significant. Why?

Accepted Answer

Responses should address the n

Question 10

Charles Darwin and Alfred Russell Wallace are both credited with developing key ideas about evolution. Each of the following statements expresses their ideas except one. Choose the exception.

Accepted Answer

A) The survival of the population is the key to evolution. 
B) All living organisms are the descendants of common ancestors. 
C) Increased survival and reproduction are the keys to evolution. 
D) The better adapted individuals are to an environment, the more likely they are to survive and reproduce. 
E) Modification of body plans and behaviors of organisms has led to descent with modification. 
A) The survival of the population is the key to evolution. 
B) All living organisms are the descendants of common ancestors. 
C) Increased survival and reproduction are the keys to evolution. 
D) The better adapted individuals are to an environment, the more likely they are to survive and reproduce. 
E) Modification of body plans and behaviors of organisms has led to descent with modification.

Question 11

Which of the following phrases is used to describe J. B. Lamarck's hypothesis of evolutionary change?

Accepted Answer

A) inheritance of ancestral identity 
B) inheritance of acquired characteristics 
C) natural selection 
D) survival of the fittest 
E) intelligent design 
A) inheritance of ancestral identity 
B) inheritance of acquired characteristics 
C) natural selection 
D) survival of the fittest 
E) intelligent design

Question 12

The majority of fossils are found in

Accepted Answer

A) sedimentary rock. 
B) Antarctica. 
C) peat bogs. 
D) tar pits. 
E) volcanic deposits. 
A) sedimentary rock. 
B) Antarctica. 
C) peat bogs. 
D) tar pits. 
E) volcanic deposits.

Question 13

Reproductive isolating mechanisms

Accepted Answer

A) occur within a species. 
B) can prevent members of the same species from reproducing. 
C) only act after fertilization. 
D) can prevent members of different species from interbreeding. 
E) only act before fertilization. 
A) occur within a species. 
B) can prevent members of the same species from reproducing. 
C) only act after fertilization. 
D) can prevent members of different species from interbreeding. 
E) only act before fertilization.

Question 14

Up until the late eighteenth and early nineteenth centuries, many naturalists believed that all species of living organism(s)had been created separately and had remained unchanged since the creation. Around that time, scientific research provided findings that were contradictory to that idea. All of the following are findings that contradict the idea of a single creation. Choose the exception.

Accepted Answer

A) As scientists explored more of the earth, they found that different groups of organisms were found in the different regions. 
B) Even though the limbs of various mammals carry out different functions (swimming, gliding, running, holding, etc.), the bone patterns are very similar. 
C) Some fossils of extinct organisms are quite different from living organisms. 
D) The limbs of some mammals serve the same purpose but their bone patterns are very different. 
E) The platypus is only found in Australia and the dodo was only found on Madagascar. 
A) As scientists explored more of the earth, they found that different groups of organisms were found in the different regions. 
B) Even though the limbs of various mammals carry out different functions (swimming, gliding, running, holding, etc.), the bone patterns are very similar. 
C) Some fossils of extinct organisms are quite different from living organisms. 
D) The limbs of some mammals serve the same purpose but their bone patterns are very different. 
E) The platypus is only found in Australia and the dodo was only found on Madagascar.

Question 15

A population in Hardy-Weinberg equilibrium

Accepted Answer

A) consists of allele frequencies that are constantly changing. 
B) is under no selective pressures. 
C) consists of genotype frequencies that are constantly changing. 
D) is very common in nature. 
E) requires a small population size. 
A) consists of allele frequencies that are constantly changing. 
B) is under no selective pressures. 
C) consists of genotype frequencies that are constantly changing. 
D) is very common in nature. 
E) requires a small population size.

Question 16

Mutation is a source of new genetic variation. New genes can only be introduced into the population when individuals reproduce. Considering this, would you expect more variation in a population of mice or elephants, over the same time period, assuming that the populations were the same size? Explain.

Accepted Answer

Responses should expect mice to have mor

Question 17

Most mutations lead to a decreased chance of survival for the mutant organism. Rarely, a mutation can provide an increased chance of survival. These rare mutations provide a(n)_____________________ for the mutant.

Accepted Answer

A) adaptive 
B) directional shift 
C) selective disadvantage 
D) environmental susceptibility 
E) selective advantage 
A) adaptive 
B) directional shift 
C) selective disadvantage 
D) environmental susceptibility 
E) selective advantage

Question 18

Explain how species that are not closely related can look or behave so similarly. Give an example.

Accepted Answer

Responses should discuss how a particula

Question 19

Which of the three modes of selection would be most likely to result in speciation? Why?

Accepted Answer

Responses should expect disrup

Question 20

What can we learn about evolution from molecular evidence?

Accepted Answer

First, because almost all living things

Exam 9: The Mechanisms of Evolution

Which of the following is not true of the punctuated equilibrium theory?

Which of the following statements about natural selection is true?

Which of the following is the best description of an adaptation?

Provide evidence for the following statement. "At the time of Darwin's journey, geology was more influential in the development of evolutionary thought than was biology."

What can we learn about evolution of the vertebrates by examination of embryos?

Homologous organs

Although Lamarck's hypothesis was wrong, it is significant. Why?

Charles Darwin and Alfred Russell Wallace are both credited with developing key ideas about evolution. Each of the following statements expresses their ideas except one. Choose the exception.

Which of the following phrases is used to describe J. B. Lamarck's hypothesis of evolutionary change?

The majority of fossils are found in

Reproductive isolating mechanisms

A population in Hardy-Weinberg equilibrium

Most mutations lead to a decreased chance of survival for the mutant organism. Rarely, a mutation can provide an increased chance of survival. These rare mutations provide a(n)_____________________ for the mutant.

Explain how species that are not closely related can look or behave so similarly. Give an example.

Which of the three modes of selection would be most likely to result in speciation? Why?

What can we learn about evolution from molecular evidence?

What Is Life

Cells and the Chemistry of Life

How Cells Take in and Use Energy

The Cell Cycle

Patterns of Inheritance

DNA: The Thread of Life

Genes, Proteins, and Genetic Engineering

Reproduction and Development

Lifes Origins and Biodiversity

Single-Celled Life

Fungi and Plants: Decomposers and Producers

The Evolution and Diversity of Animals

Ecology of Populations and Communities

Ecosystems and the Biosphere

Body Function, Survival, and the Steady State

Circulation and Respiration

Defense Against Disease

Animal Nutrition and Digestion

Hormones: Messengers of Change

The Nervous System

The Body in Motion

Plant Architecture and Function

Plant Growth, Hormones, and Engineering

The Dynamic Plant

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