Question 1

A weed that exhibits resistance to an herbicide ________.

Accepted Answer

A)  developed the resistance in response to the herbicide 
B)  mutated when exposed to the herbicide 
C)  inherited the gene that made it resistant to the herbicide 
D)  is less likely to pass on the gene to the next generation 
A)  developed the resistance in response to the herbicide 
B)  mutated when exposed to the herbicide 
C)  inherited the gene that made it resistant to the herbicide 
D)  is less likely to pass on the gene to the next generation

Question 2

Which grouping includes all of the protists?

Accepted Answer

A)  Domain Archaea 
B)  Domain Eukarya 
C)  Kingdom Animalia 
D)  Kingdom Plantae 
A)  Domain Archaea 
B)  Domain Eukarya 
C)  Kingdom Animalia 
D)  Kingdom Plantae

Question 3

The eastern meadowlark and the western meadowlark are two bird species that look very similar to each other.Why do biologists not consider them the same species?

Accepted Answer

A)  Species are not determined by appearance but by their ability to interbreed naturally. 
B)  The two species do not live in the same habitat and thus do not interbreed in nature. 
C)  The two species experience the reproductive barrier of habitat isolation. 
D)  All of the above are correct. 
A)  Species are not determined by appearance but by their ability to interbreed naturally. 
B)  The two species do not live in the same habitat and thus do not interbreed in nature. 
C)  The two species experience the reproductive barrier of habitat isolation. 
D)  All of the above are correct.

Question 4

What defines a population in evolution?

Accepted Answer

A)  Members of the same group that share a common ancestor 
B)  Members of a single species 
C)  Interbreeding members of the same species 
D)  Multiple species interacting together 
A)  Members of the same group that share a common ancestor 
B)  Members of a single species 
C)  Interbreeding members of the same species 
D)  Multiple species interacting together

Question 5

What is the leading hypothesis for what might have brought about the extinction of the dinosaurs?

Accepted Answer

A)  A new disease 
B)  Competition from mammals 
C)  An asteroid impact 
D)  Massive volcano eruptions 
A)  A new disease 
B)  Competition from mammals 
C)  An asteroid impact 
D)  Massive volcano eruptions

Question 6

The rapid diversification of species seen in the fossil record followed by long periods of stasis is part of the ________ model of evolution.

Accepted Answer

A)  punctuated equilibrium 
B)  symmetric 
C)  spatial 
D)  graduated 
A)  punctuated equilibrium 
B)  symmetric 
C)  spatial 
D)  graduated

Question 7

The slow drifting of sections of the earth's crust,sometimes separating,other times colliding,is known as ________.

Accepted Answer

A)  continental convergence 
B)  continental divergence 
C)  crust dynamics 
D)  plate tectonics 
A)  continental convergence 
B)  continental divergence 
C)  crust dynamics 
D)  plate tectonics

Question 8

Which of the following mechanisms can drive evolution?

Accepted Answer

A)  Mutations 
B)  Genetic drift 
C)  Natural selection 
D)  All of the above 
A)  Mutations 
B)  Genetic drift 
C)  Natural selection 
D)  All of the above

Question 9

Natural selection acts on ________,and ________ evolve.

Accepted Answer

A)  individuals; individuals 
B)  individuals; populations 
C)  populations; populations 
D)  populations; individuals 
A)  individuals; individuals 
B)  individuals; populations 
C)  populations; populations 
D)  populations; individuals

Question 10

Which of the following most often should lead to allopatric speciation?

Accepted Answer

A)  Habitat isolation 
B)  Behavioral isolation 
C)  Gametic incompatibility 
D)  Mating time differences 
A)  Habitat isolation 
B)  Behavioral isolation 
C)  Gametic incompatibility 
D)  Mating time differences

Question 11

Before Darwin published his work,Lamarck and others had suggested mechanisms for evolution.By what means did Darwin propose species evolved over time?

Accepted Answer

A)  Overproduction of young 
B)  Passing on acquired traits 
C)  Survival of the strongest 
D)  Natural selection 
A)  Overproduction of young 
B)  Passing on acquired traits 
C)  Survival of the strongest 
D)  Natural selection

Question 12

What term describes the failure of one species' sperm to fertilize the egg of a different species?

Accepted Answer

A)  Hybrid weakness 
B)  Gametic incompatibility 
C)  Mechanical incompatibility 
D)  Mating time differences 
A)  Hybrid weakness 
B)  Gametic incompatibility 
C)  Mechanical incompatibility 
D)  Mating time differences

Question 13

Which two observations led Darwin to conclude that there is competition for survival?

Accepted Answer

A)  Overproduction and limited resources 
B)  Fossils and mutations 
C)  Gene and allele differences in organisms 
D)  Natural selection and descent with modification 
A)  Overproduction and limited resources 
B)  Fossils and mutations 
C)  Gene and allele differences in organisms 
D)  Natural selection and descent with modification

Question 14

When did life first appear on the planet?

Accepted Answer

A)  3.5 billion years ago 
B)  2.1 billion years ago 
C)  3.5 million years ago 
D)  2.1 million years ago 
A)  3.5 billion years ago 
B)  2.1 billion years ago 
C)  3.5 million years ago 
D)  2.1 million years ago

Question 15

Of those listed below,which category of classification is the most narrow?

Accepted Answer

A)  Class 
B)  Domain 
C)  Family 
D)  Genus 
A)  Class 
B)  Domain 
C)  Family 
D)  Genus

Question 16

Which of the following best defines microevolution?

Accepted Answer

A)  Changes in genes between populations 
B)  Changes in genes within a population over time 
C)  Changes in genes that do not change the gene pool over time 
D)  Changes across species but not in genes 
A)  Changes in genes between populations 
B)  Changes in genes within a population over time 
C)  Changes in genes that do not change the gene pool over time 
D)  Changes across species but not in genes

Question 17

Human embryos have a developmental stage during which they have a tail and pharyngeal pouches (those pouches develop into gills in fish).How can we explain these characteristics of human embryos?

Accepted Answer

A)  Human embryos need a tail and gills to breathe during development in the placenta. 
B)  Human embryos spend time in the water where tails and gills are useful. 
C)  Human embryos share a common ancestor who had gills. 
D)  Both A and B are correct. 
A)  Human embryos need a tail and gills to breathe during development in the placenta. 
B)  Human embryos spend time in the water where tails and gills are useful. 
C)  Human embryos share a common ancestor who had gills. 
D)  Both A and B are correct.

Question 18

Certain traits will have been lost from the gene pool forever.Some traits,such as red hair or double-jointed thumbs,may be obvious.Others,such as the ability to process cholesterol or an allergy to peanuts,will be less obvious.This loss of diversity in a reduced population is called ________.

Accepted Answer

A)  gene flow 
B)  genetic drift 
C)  bottleneck effect 
D)  founder effect 
A)  gene flow 
B)  genetic drift 
C)  bottleneck effect 
D)  founder effect

Question 19

Which of the following are considered fossils?

Accepted Answer

A)  Footprints or other impressions preserved in stone 
B)  Mineralized bones 
C)  Animals frozen in ice or preserved in amber 
D)  All of these 
A)  Footprints or other impressions preserved in stone 
B)  Mineralized bones 
C)  Animals frozen in ice or preserved in amber 
D)  All of these

Question 20

If a changing environment increases rates of evolution,why do we see an increase in extinction rates following rapid global catastrophes?

Accepted Answer

Either the change is too swift

A weed that exhibits resistance to an herbicide ________.

Which grouping includes all of the protists?

The eastern meadowlark and the western meadowlark are two bird species that look very similar to each other.Why do biologists not consider them the same species?

What defines a population in evolution?

What is the leading hypothesis for what might have brought about the extinction of the dinosaurs?

The rapid diversification of species seen in the fossil record followed by long periods of stasis is part of the ________ model of evolution.

The slow drifting of sections of the earth's crust,sometimes separating,other times colliding,is known as ________.

Which of the following mechanisms can drive evolution?

Natural selection acts on ,and evolve.

Which of the following most often should lead to allopatric speciation?

Before Darwin published his work,Lamarck and others had suggested mechanisms for evolution.By what means did Darwin propose species evolved over time?

What term describes the failure of one species' sperm to fertilize the egg of a different species?

Which two observations led Darwin to conclude that there is competition for survival?

When did life first appear on the planet?

Of those listed below,which category of classification is the most narrow?

Which of the following best defines microevolution?

Human embryos have a developmental stage during which they have a tail and pharyngeal pouches (those pouches develop into gills in fish).How can we explain these characteristics of human embryos?

Certain traits will have been lost from the gene pool forever.Some traits,such as red hair or double-jointed thumbs,may be obvious.Others,such as the ability to process cholesterol or an allergy to peanuts,will be less obvious.This loss of diversity in a reduced population is called ________.

Which of the following are considered fossils?

If a changing environment increases rates of evolution,why do we see an increase in extinction rates following rapid global catastrophes?

An Introduction to the Science of Life

The Chemistry of Life

The Cell: The Fundamental Unit of Life

Energy and Life

Chromosomes and Inheritance

Dna: the Molecule of Life

Biodiversity 1: Microscopic Organisms

Biodiversity 2: Fungi and Plants

Biodiversity 3: Animals

Human Body Systems

Ecology

Filters

Exam 7: Darwinian Evolution

A weed that exhibits resistance to an herbicide ________.

Which grouping includes all of the protists?

The eastern meadowlark and the western meadowlark are two bird species that look very similar to each other.Why do biologists not consider them the same species?

What defines a population in evolution?

What is the leading hypothesis for what might have brought about the extinction of the dinosaurs?

The rapid diversification of species seen in the fossil record followed by long periods of stasis is part of the ________ model of evolution.

The slow drifting of sections of the earth's crust,sometimes separating,other times colliding,is known as ________.

Which of the following mechanisms can drive evolution?

Natural selection acts on ________,and ________ evolve.

Which of the following most often should lead to allopatric speciation?

Before Darwin published his work,Lamarck and others had suggested mechanisms for evolution.By what means did Darwin propose species evolved over time?

What term describes the failure of one species' sperm to fertilize the egg of a different species?

Which two observations led Darwin to conclude that there is competition for survival?

When did life first appear on the planet?

Of those listed below,which category of classification is the most narrow?

Which of the following best defines microevolution?

Human embryos have a developmental stage during which they have a tail and pharyngeal pouches (those pouches develop into gills in fish).How can we explain these characteristics of human embryos?

Certain traits will have been lost from the gene pool forever.Some traits,such as red hair or double-jointed thumbs,may be obvious.Others,such as the ability to process cholesterol or an allergy to peanuts,will be less obvious.This loss of diversity in a reduced population is called ________.

Which of the following are considered fossils?

If a changing environment increases rates of evolution,why do we see an increase in extinction rates following rapid global catastrophes?

An Introduction to the Science of Life

The Chemistry of Life

The Cell: The Fundamental Unit of Life

Energy and Life

Chromosomes and Inheritance

Dna: the Molecule of Life

Biodiversity 1: Microscopic Organisms

Biodiversity 2: Fungi and Plants

Biodiversity 3: Animals

Human Body Systems

Ecology

Filters

Natural selection acts on ,and evolve.