Question 1

The generation of ecologically diverse species from a common ancestral stock is called ________________.

Accepted Answer

adaptive radiation

Question 2

Neo-Darwinism

Accepted Answer

A) means the same thing as "modern Darwinism." 
B) consists of Darwin's basic principles coupled with an understanding of genetics. 
C) adds microevolution to macroevolution. 
D) is based on new RNA molecular similarities. 
E) brings together biogeography,embryology,systematics,genetics,etc. 
A) means the same thing as "modern Darwinism." 
B) consists of Darwin's basic principles coupled with an understanding of genetics. 
C) adds microevolution to macroevolution. 
D) is based on new RNA molecular similarities. 
E) brings together biogeography,embryology,systematics,genetics,etc. B

Question 3

For the sake of this genetics problem,consider that right-handedness (RR,Rr)is dominant to left-handedness (rr).A teacher surveys her class of 24 students and finds that six (one-fourth,or 0.25)are left-handed.How many of the remaining right-handed students are likely to be carriers for a left-handedness gene?

Accepted Answer

A) None,they will all be RR for right-handedness since a dominant gene dominates 
B) Six,same number as are left-handed or 0.25 * 24 
C) Twelve,since q2 = 0.25,then q = 0.5,and 2pq or 2(0.5 * 0.5)= 0.5 of a class of 24 
D) Eighteen will be Rr since 24 - 6 = 18 
A) None,they will all be RR for right-handedness since a dominant gene dominates 
B) Six,same number as are left-handed or 0.25 * 24 
C) Twelve,since q2 = 0.25,then q = 0.5,and 2pq or 2(0.5 * 0.5)= 0.5 of a class of 24 
D) Eighteen will be Rr since 24 - 6 = 18 C

Question 4

The theory that ontogeny recapitulates phylogeny was originally offered by

Accepted Answer

A) Alfred Wallace. 
B) K. 
C) Charles Darwin. 
D) Ernst Haeckel. 
E) von Baer. 
A) Alfred Wallace. 
B) K. 
C) Charles Darwin. 
D) Ernst Haeckel. 
E) von Baer.

Question 5

Explain how the earth's rock strata record the irreversible changes we call organic evolution (discuss the processes of fossilization).

Accepted Answer

The Earth's rock strata record the irrev

Question 6

Niles Eldridge and Stephen Jay Gould proposed that speciation is an episodic event that occurs in variable time periods ranging from thousands to hundreds of thousands of years,all of which are geologically brief time periods,and that there are long periods of evolutionary stasis in between,a theory called _______ ________.

Accepted Answer

punctuated

Question 7

Which of the following would form a nested hierarchy or hierarchies of homologies?

Accepted Answer

A) Humans share most common blood types but we have fewer in common with monkeys and share fewest with rats 
B) Birds have feathers,muscles and nucleated cells;fish have muscles and nucleated cells;an amoeba has a nucleus 
C) Skeletal measurements cluster among modern apes and humans;ape-man fossil skeletal features also cluster and overlap with both modern apes and humans 
D) All of the choices include nested hierarchies of homologies 
A) Humans share most common blood types but we have fewer in common with monkeys and share fewest with rats 
B) Birds have feathers,muscles and nucleated cells;fish have muscles and nucleated cells;an amoeba has a nucleus 
C) Skeletal measurements cluster among modern apes and humans;ape-man fossil skeletal features also cluster and overlap with both modern apes and humans 
D) All of the choices include nested hierarchies of homologies

Question 8

The concept that each successive stage in the development of an individual represents the adult form that appeared in development of its evolutionary history is termed

Accepted Answer

A) Larmarckism. 
B) Heterochrony. 
C) Paedomorphosis. 
D) Recapitulation. 
A) Larmarckism. 
B) Heterochrony. 
C) Paedomorphosis. 
D) Recapitulation.

Question 9

Explain how Malthus' work in socioeconomics applied to the development of Darwin's theory of natural selection.

Accepted Answer

Thomas Malthus was an economist who prop

Question 10

Radiometric dating methods determine the age of rock formations how?

Accepted Answer

A) By using guide or index fossils 
B) By relating the positions of layers to each other 
C) By calculating the ratios of elements and decay products 
D) By examining atoms for extent of wear and tear 
A) By using guide or index fossils 
B) By relating the positions of layers to each other 
C) By calculating the ratios of elements and decay products 
D) By examining atoms for extent of wear and tear

Question 11

Which statement is NOT true about natural selection?

Accepted Answer

A) Directional selection occurs when one extreme phenotype is favored over another different extreme phenotype 
B) Stabilizing selection favors an intermediate phenotype over either of the extreme phenotypes 
C) Directional selection leads to the best fit phenotype in the population when the environment remains the same 
D) Disruptive selection leads to polymorphism,favoring different forms of the same species 
A) Directional selection occurs when one extreme phenotype is favored over another different extreme phenotype 
B) Stabilizing selection favors an intermediate phenotype over either of the extreme phenotypes 
C) Directional selection leads to the best fit phenotype in the population when the environment remains the same 
D) Disruptive selection leads to polymorphism,favoring different forms of the same species

Question 12

Which condition is NOT among the requirements of Hardy-Weinberg equilibrium?

Accepted Answer

A) No mutations 
B) No net migration of alleles into or out of the population 
C) Small population with genetic drift 
D) No selection of one genotype over another 
A) No mutations 
B) No net migration of alleles into or out of the population 
C) Small population with genetic drift 
D) No selection of one genotype over another

Question 13

Birds and insects both have wings,but we do not consider this similarity as evidence of relatedness because

Accepted Answer

A) bird wings function on different physics principles of lift. 
B) the wings are not homologous structures with a common ancestral origin. 
C) they did not evolve in the same region or live at the same time period. 
D) there is no fossil link between these groups. 
A) bird wings function on different physics principles of lift. 
B) the wings are not homologous structures with a common ancestral origin. 
C) they did not evolve in the same region or live at the same time period. 
D) there is no fossil link between these groups.

Question 14

When two adjacent populations of the same species have gene flow,the two populations will

Accepted Answer

A) become more similar in their gene pools. 
B) become isolated from each other. 
C) develop into different species. 
D) adapt to different conditions and become separate. 
A) become more similar in their gene pools. 
B) become isolated from each other. 
C) develop into different species. 
D) adapt to different conditions and become separate.

Question 15

Discuss the views of paleontologist Elisabeth Vrba,who uses the term effect macroevolution to describe differential speciation and extinction rates among lineages caused by organismal-level properties.

Accepted Answer

Paleontologist Elisabeth Vrba is known f

Question 16

The concept that features of an ancestral ontogeny can be shifted earlier or later in development is termed

Accepted Answer

A) Larmarckism. 
B) Heterochrony. 
C) Paedomorphosis. 
D) Recapitulation. 
A) Larmarckism. 
B) Heterochrony. 
C) Paedomorphosis. 
D) Recapitulation.

Question 17

What is the correct sequence extending down from the phenotype to the genetic unit?

Accepted Answer

A) Phenotype-codon-protein-amino acid-protein 
B) Phenotype-protein-protein-amino acid-codon 
C) Phenotype-protein-protein-codon-amino acid 
D) Phenotype-amino acid-protein-protein-codon 
A) Phenotype-codon-protein-amino acid-protein 
B) Phenotype-protein-protein-amino acid-codon 
C) Phenotype-protein-protein-codon-amino acid 
D) Phenotype-amino acid-protein-protein-codon

Question 18

Which of the following statements is true about a modern phylogeny of life's history?

Accepted Answer

A) There are multiple independent origins of the distinct life forms: bacteria,plants,etc. 
B) It is only based on living organisms since the reproductive isolation of extinct species cannot be determined 
C) All forms of life including extinct branches are related 
D) Genealogies can only be traced for groups where the primordial ancestor has survived 
A) There are multiple independent origins of the distinct life forms: bacteria,plants,etc. 
B) It is only based on living organisms since the reproductive isolation of extinct species cannot be determined 
C) All forms of life including extinct branches are related 
D) Genealogies can only be traced for groups where the primordial ancestor has survived

Question 19

Which of the following contribute(s)to evolution?

Accepted Answer

A) Mutations 
B) Gene flow 
C) Genetic drift 
D) Natural selection 
E) All of the choices are correct 
A) Mutations 
B) Gene flow 
C) Genetic drift 
D) Natural selection 
E) All of the choices are correct

Question 20

Define sexual selection and provide an example.

Accepted Answer

Sexual selection is a concept in evoluti

Exam 6: Organic Evolution

The generation of ecologically diverse species from a common ancestral stock is called ________________.

Neo-Darwinism

The theory that ontogeny recapitulates phylogeny was originally offered by

Explain how the earth's rock strata record the irreversible changes we call organic evolution (discuss the processes of fossilization).

Which of the following would form a nested hierarchy or hierarchies of homologies?

The concept that each successive stage in the development of an individual represents the adult form that appeared in development of its evolutionary history is termed

Explain how Malthus' work in socioeconomics applied to the development of Darwin's theory of natural selection.

Radiometric dating methods determine the age of rock formations how?

Which statement is NOT true about natural selection?

Which condition is NOT among the requirements of Hardy-Weinberg equilibrium?

Birds and insects both have wings,but we do not consider this similarity as evidence of relatedness because

When two adjacent populations of the same species have gene flow,the two populations will

Discuss the views of paleontologist Elisabeth Vrba,who uses the term effect macroevolution to describe differential speciation and extinction rates among lineages caused by organismal-level properties.

The concept that features of an ancestral ontogeny can be shifted earlier or later in development is termed

What is the correct sequence extending down from the phenotype to the genetic unit?

Which of the following statements is true about a modern phylogeny of life's history?

Which of the following contribute(s)to evolution?

Define sexual selection and provide an example.

Life: Biological Principles and the Science of Zoology

The Origin and Chemistry of Life

Cells As Units of Life

Cellular Metabolism

Genetics: a Review

The Reproductive Process

Principles of Development

Architectual Pattern of an Animal

Taxonomy and Phylogeny of Animals

Unicellular Eukaryotes

Sponges and Placozoans

Cnidarians and Ctenophores

Acoelomorpha, Platyzoa, and Mesozoa

Polyzoa and Kryptrochozoa

Molluscs

Annelids and Allied Taxa

Smaller Ecdysozoans

Trilobites, Chelicerates, and Myriapods

Crustaceans

Hexapods

Chaetognaths, echinoderms, and Hemichordates

Chordates

Fishes

Early Tetrapods and Modern Amphibians

Amniote Origins and Nonavian Reptiles

Birds

Mammals

Support, Protection, and Movement

Homeostasis: Osmotic Regulation, Excretion, and Temperature Regulation

Homeostasis: Internal Fluids and Respiration

Digestion and Nutrition

Nervous Coordination: Nervous System and Sense Organs

Chemical Coordination: Endocrine System

Immunity

Animal Behavior

Animal Distribution

Animal Ecology

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