Question 1

A requirement of cladistics is that a grouping must include ________.

Accepted Answer

A)  species that can interbreed 
B)  only living species 
C)  species with shared traits 
D)  a common ancestor and all its descendants 
A)  species that can interbreed 
B)  only living species 
C)  species with shared traits 
D)  a common ancestor and all its descendants

Question 2

Explain how a complex trait,such as eyes or the ability to fly,can evolve by incremental modifications over time.

Accepted Answer

A trait that makes an organism successfu

Question 3

Comparing the body structures of organisms to find evidence of a shared evolutionary history is called ________.

Accepted Answer

A)  outgrouping 
B)  relativistic physiology 
C)  comparative anatomy 
D)  analogous reconstruction 
A)  outgrouping 
B)  relativistic physiology 
C)  comparative anatomy 
D)  analogous reconstruction

Question 4

Which process of evolution does not change the total number of species?

Accepted Answer

A)  Branching evolution 
B)  Nonbranching evolution 
C)  Extinction 
D)  All change the number of species 
A)  Branching evolution 
B)  Nonbranching evolution 
C)  Extinction 
D)  All change the number of species

Question 5

How can the use of chemical control agents (antibiotics,herbicides,pesticides)lead to their decreased effectiveness?

Accepted Answer

By changing the environment,these chemic

Question 6

What is the original source of variation that natural selection can act upon?

Accepted Answer

A)  Mutation 
B)  Gene flow 
C)  Genetic drift 
D)  All of the above 
A)  Mutation 
B)  Gene flow 
C)  Genetic drift 
D)  All of the above

Question 7

What events can lead to offspring having a unique arrangement of their parents' genes?

Accepted Answer

A)  Crossing over 
B)  Independent assortment 
C)  Both of these 
D)  Neither of these 
A)  Crossing over 
B)  Independent assortment 
C)  Both of these 
D)  Neither of these

Question 8

Which of the following is evidence for evolution?

Accepted Answer

A)  Bacteria becoming resistant to antibiotics over time 
B)  Mosquitoes becoming resistant to pesticides 
C)  Cells with common features and chemically similar DNA 
D)  All are evidence for evolution 
A)  Bacteria becoming resistant to antibiotics over time 
B)  Mosquitoes becoming resistant to pesticides 
C)  Cells with common features and chemically similar DNA 
D)  All are evidence for evolution

Question 9

What is the fundamental difference between the processes of microevolution and macroevolution?

Accepted Answer

They are fundamentally identical process

Question 10

In many ways,a mule is a superior animal to the horse or donkey.Mules are often stronger and can jump higher than either of their parents.Why,then,are mules considered to be a "weak hybrid"?

Accepted Answer

A)  They are sterile. 
B)  They do not live as long as horses and donkeys. 
C)  Their offspring are progressively weaker than the parents. 
D)  They are more prone to disease than are horses and donkeys. 
A)  They are sterile. 
B)  They do not live as long as horses and donkeys. 
C)  Their offspring are progressively weaker than the parents. 
D)  They are more prone to disease than are horses and donkeys.

Question 11

What defines a geological time period known as an era?

Accepted Answer

A)  Location of the continents 
B)  The distinct life forms that were present 
C)  Average global temperature 
D)  The eras represent equal divisions of time 
A)  Location of the continents 
B)  The distinct life forms that were present 
C)  Average global temperature 
D)  The eras represent equal divisions of time

Question 12

Despite an abundance of habitat,why will it be difficult for the human species to recover?

Accepted Answer

A)  Related humans are not able to reproduce. 
B)  The founder effect will slowly kill off the survivors in a small population. 
C)  Modern humans lack the ingenuity needed to survive without an extended social network. 
D)  The reduced genetic diversity will make it difficult for the population to adapt to new diseases or other environmental changes. 
A)  Related humans are not able to reproduce. 
B)  The founder effect will slowly kill off the survivors in a small population. 
C)  Modern humans lack the ingenuity needed to survive without an extended social network. 
D)  The reduced genetic diversity will make it difficult for the population to adapt to new diseases or other environmental changes.

Question 13

The oldest fossils typically are found in the ________ sediments.

Accepted Answer

A)  upper 
B)  lower 
C)  coarser 
D)  finer 
A)  upper 
B)  lower 
C)  coarser 
D)  finer

Question 14

What field of science has as its goal to classify all living things into a hierarchical system of relatedness that runs from most broad to most narrow?

Accepted Answer

A)  Evolution 
B)  Phylogenetics 
C)  Taxonomy 
D)  Cladistics 
A)  Evolution 
B)  Phylogenetics 
C)  Taxonomy 
D)  Cladistics

Question 15

What is radiometric dating?

Accepted Answer

A)  The process of determining the age of a fossil from radioactive isotopes 
B)  The mineralization process by which living things are turned into fossils 
C)  The process of determining the age of a fossil based on which layer in the rock it is found 
D)  The process of determining the age of a fossil using radio waves 
A)  The process of determining the age of a fossil from radioactive isotopes 
B)  The mineralization process by which living things are turned into fossils 
C)  The process of determining the age of a fossil based on which layer in the rock it is found 
D)  The process of determining the age of a fossil using radio waves

Question 16

What is the smallest unit that can evolve?

Accepted Answer

A)  The community 
B)  The population 
C)  The individual 
D)  The cell 
A)  The community 
B)  The population 
C)  The individual 
D)  The cell

A requirement of cladistics is that a grouping must include ________.

Explain how a complex trait,such as eyes or the ability to fly,can evolve by incremental modifications over time.

Comparing the body structures of organisms to find evidence of a shared evolutionary history is called ________.

Which process of evolution does not change the total number of species?

How can the use of chemical control agents (antibiotics,herbicides,pesticides)lead to their decreased effectiveness?

What is the original source of variation that natural selection can act upon?

What events can lead to offspring having a unique arrangement of their parents' genes?

Which of the following is evidence for evolution?

What is the fundamental difference between the processes of microevolution and macroevolution?

In many ways,a mule is a superior animal to the horse or donkey.Mules are often stronger and can jump higher than either of their parents.Why,then,are mules considered to be a "weak hybrid"?

What defines a geological time period known as an era?

Despite an abundance of habitat,why will it be difficult for the human species to recover?

The oldest fossils typically are found in the ________ sediments.

What field of science has as its goal to classify all living things into a hierarchical system of relatedness that runs from most broad to most narrow?

What is radiometric dating?

What is the smallest unit that can evolve?

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 requirement of cladistics is that a grouping must include ________.

Explain how a complex trait,such as eyes or the ability to fly,can evolve by incremental modifications over time.

Comparing the body structures of organisms to find evidence of a shared evolutionary history is called ________.

Which process of evolution does not change the total number of species?

How can the use of chemical control agents (antibiotics,herbicides,pesticides)lead to their decreased effectiveness?

What is the original source of variation that natural selection can act upon?

What events can lead to offspring having a unique arrangement of their parents' genes?

Which of the following is evidence for evolution?

What is the fundamental difference between the processes of microevolution and macroevolution?

In many ways,a mule is a superior animal to the horse or donkey.Mules are often stronger and can jump higher than either of their parents.Why,then,are mules considered to be a "weak hybrid"?

What defines a geological time period known as an era?

Despite an abundance of habitat,why will it be difficult for the human species to recover?

The oldest fossils typically are found in the ________ sediments.

What field of science has as its goal to classify all living things into a hierarchical system of relatedness that runs from most broad to most narrow?

What is radiometric dating?

What is the smallest unit that can evolve?

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