Question 1

Nonscientists often use the words ''name," ''identify," and ''classify" interchangeably.When they want to know what an organism is,they may ask "Can you name this?" or "Can you identify this?" or "Can you classify this?" Which of the following is/are correct usage(s) of the term(s) ?

Accepted Answer

A)  Only the scientist who first describes a new species actually names it.
B)  Classifying is grouping,and to classify something requires several organisms so you can group one as closer to a second and distant from a third.
C)  A farmer is using a key to detect pest insect species in his fields is identifying insects but not naming or necessarily classifying them.
D)  A scientist who publishes the name and description of a new species must necessarily also know both how to identify and classify the species.
E)  All of the choices are correct.F) All of the above
G) A) and B)

Question 2

Based on this tree,mammals are as closely related to birds as they are to snakes.

Accepted Answer

A) True 
 B)False

Question 3

Of the three domains in Woese's classification system,which do most biologists recognize?

Accepted Answer

A)  Monera,Archae,and Bacteria
B)  Fungi,Monera,and Archae
C)  Archae,Bacteria and Eukarya
D)  Protista,Fungi,and EukaryaE) All of the above
F) A) and B)

Question 4

The amino acid sequences in cytochrome c were determined for chickens,ducks,and humans.Scientists found a difference of 3 amino acids between chickens and ducks,but between chickens and humans there were 13 differences.One may conclude that

Accepted Answer

A)  chickens are as closely related to humans as they are to ducks.
B)  chickens are more closely related to ducks than they are to humans.
C)  chickens are more closely related to humans than they are to ducks.
D)  None of the above.E) A) and D)
F) A) and C)

Question 5

The outlined group is

Accepted Answer

A)  monophyletic.
B)  paraphyletic.
C)  polyphyletic.
D)  monophyletic and paraphyletic are correct.E) All of the above
F) C) and D)

Question 6

In cladistics,_______________ is(are) the primary criterion used to classify organisms.

Accepted Answer

A)  ecological niche
B)  common ancestry
C)  mating behavior
D)  observable traits
E)  All of the above.F) A) and D)
G) A) and B)

Question 7

A taxon is the general name for a group of organisms that exhibit a set of shared traits.

Accepted Answer

A) True 
 B)False

Question 8

The northern copperhead is Agkistrodon contortrix contortrix,the southern copperhead is Agkistrodon contortrix mokasen,and the cottonmouth is Agkistrodon piscivorous.Therefore,

Accepted Answer

A)  all are subspecies of Agkistrodon.
B)  they are three distinct species.
C)  the copperheads are subspecies and the cottonmouth is a separate species.
D)  they are all the same species.E) C) and D)
F) B) and C)

Question 9

A study of echinoderm embryos,such as sea stars,confirms a similar developmental pattern to that of vertebrates.In both,the blastopore becomes the anus.This would be considered

Accepted Answer

A)  behavioral data.
B)  convergent evolution.
C)  analogy.
D)  homology.
E)  synapomorphy.F) A) and D)
G) C) and E)

Question 10

Eels are as closely related to lizards as they are to snakes.

Accepted Answer

A) True 
 B)False

Question 11

Which type of trait is more valuable in determining the evolutionary relationship between two organisms?

Accepted Answer

A)  derived
B)  ancestral
C)  Both traits are equally valuable in determining the evolutionary relationship between two organisms.
D)  Neither trait is useful in determining the evolutionary relationship between two organisms.E) A) and D)
F) A) and C)

Question 12

Whittaker's classification included Kingdom Monera,which included all prokaryotes.Why is this classification obsolete?

Accepted Answer

A)  Based on fossil evidence,this group has been divided into three newly named kingdoms.
B)  This kingdom now includes more organisms,so the name has been changed.
C)  The prokaryotes,which were included in this kingdom,are now included in Protista.
D)  Based on molecular data,Monera has been divided into the two distinct domains,Archaea and Bacteria.E) A) and C)
F) A) and D)

Exam 19: Taxonomy,systematics,and Phylogeny

Which type of trait is more valuable in determining the evolutionary relationship between two organisms?

Correct Answer
verified

Based on this tree,mammals are as closely related to birds as they are to snakes.

Correct Answer
verified

Whittaker's classification included Kingdom Monera,which included all prokaryotes.Why is this classification obsolete?

Correct Answer
verified

Of the three domains in Woese's classification system,which do most biologists recognize?

Correct Answer
verified

A taxon is the general name for a group of organisms that exhibit a set of shared traits.

Correct Answer
verified

Nonscientists often use the words ''name," ''identify," and ''classify" interchangeably.When they want to know what an organism is,they may ask "Can you name this?" or "Can you identify this?" or "Can you classify this?" Which of the following is/are correct usage(s) of the term(s) ?

Correct Answer
verified

Eels are as closely related to lizards as they are to snakes.

Correct Answer
verified

A study of echinoderm embryos,such as sea stars,confirms a similar developmental pattern to that of vertebrates.In both,the blastopore becomes the anus.This would be considered

Correct Answer
verified

The outlined group is

Correct Answer
verified

The northern copperhead is Agkistrodon contortrix contortrix,the southern copperhead is Agkistrodon contortrix mokasen,and the cottonmouth is Agkistrodon piscivorous.Therefore,

Correct Answer
verified

In cladistics,_______________ is(are) the primary criterion used to classify organisms.

Correct Answer
verified

The amino acid sequences in cytochrome c were determined for chickens,ducks,and humans.Scientists found a difference of 3 amino acids between chickens and ducks,but between chickens and humans there were 13 differences.One may conclude that

Correct Answer
verified

Exam 19: Taxonomy,systematics,and Phylogeny

Which type of trait is more valuable in determining the evolutionary relationship between two organisms?

Correct AnswerverifiedShow Answer

Based on this tree,mammals are as closely related to birds as they are to snakes.

Correct AnswerverifiedShow Answer

Whittaker's classification included Kingdom Monera,which included all prokaryotes.Why is this classification obsolete?

Correct AnswerverifiedShow Answer

Of the three domains in Woese's classification system,which do most biologists recognize?

Correct AnswerverifiedShow Answer

A taxon is the general name for a group of organisms that exhibit a set of shared traits.

Correct AnswerverifiedShow Answer

Nonscientists often use the words ''name," ''identify," and ''classify" interchangeably.When they want to know what an organism is,they may ask "Can you name this?" or "Can you identify this?" or "Can you classify this?" Which of the following is/are correct usage(s) of the term(s) ?

Correct AnswerverifiedShow Answer

Eels are as closely related to lizards as they are to snakes.

Correct AnswerverifiedShow Answer

A study of echinoderm embryos,such as sea stars,confirms a similar developmental pattern to that of vertebrates.In both,the blastopore becomes the anus.This would be considered

Correct AnswerverifiedShow Answer

The outlined group is

Correct AnswerverifiedShow Answer

The northern copperhead is Agkistrodon contortrix contortrix,the southern copperhead is Agkistrodon contortrix mokasen,and the cottonmouth is Agkistrodon piscivorous.Therefore,

Correct AnswerverifiedShow Answer

In cladistics,_______________ is(are) the primary criterion used to classify organisms.

Correct AnswerverifiedShow Answer

The amino acid sequences in cytochrome c were determined for chickens,ducks,and humans.Scientists found a difference of 3 amino acids between chickens and ducks,but between chickens and humans there were 13 differences.One may conclude that

Correct AnswerverifiedShow Answer

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