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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


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

F) B) and E)
G) A) and B)

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Which of the following lists best describes the features used to classify an organism as a member of domain Bacteria?


A) Unicellular,lacking a nuclear envelope and membrane-bound organelles,contains ribosomes but lacks introns
B) Unicellular,contains a nuclear envelope and membrane-bound organelles,contains ribosomes but lacks introns
C) Unicellular,lacks a nuclear envelope and membrane-bound organelles,contains introns but lacks ribosomes
D) Multicellular,lacks a nuclear envelope and membrane-bound organelles,contains introns but lacks ribosomes

E) All of the above
F) A) and B)

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Of those listed,which level of classification is the most specific?


A) kingdom
B) phylum
C) family
D) domain
E) class

F) A) and E)
G) A) and D)

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Which of the following scientific names includes an eponym?


A) Abies grandis
B) Zeus olympius
C) Allium hendersonii
D) Aconitum columbianum

E) B) and C)
F) C) and D)

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Which of the following best represents analogous structures?


A) the arm of a human and the wing of a bat
B) the arm of a human and the leg of a human
C) the wing of a butterfly and the wing of a bee
D) the wing of a bat and the wing of a butterfly

E) All of the above
F) A) and B)

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New data about rRNA led to the three-domain system of classification.

A) True
B) False

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The newest issue of your favorite science magazine has an article about several recently discovered archaeans.These organisms were found living in swamp mud.Based on this information,these archaeans are probably halophiles.

A) True
B) False

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Which kingdom or supergroup is characterized by organisms that are saprotrophic by absorption?


A) Animal
B) Plant
C) Fungi
D) Protists

E) All of the above
F) C) and D)

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The use of a molecular clock may be used to indicate relatedness and evolutionary time


A) if nucleic acid changes are neutral and not tied to adaptation.
B) if nucleic acid changes occur at a fairly constant rate.
C) but is more strongly supported when it can be compared with the fossil record.
D) All of the choices are correct.

E) B) and C)
F) A) and C)

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


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) B) and C)
F) C) and D)

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Which of the following domains include the majority of the organisms that were previously classified in kingdom Monera?


A) Bacteria and Eubacteria
B) Protista and Eukarya
C) Archaea and Algae
D) Eukarya and Bacteria
E) Archaea and Bacteria

F) A) and D)
G) A) and B)

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Order these major taxonomic categories into an increasingly inclusive hierarchy.


A) genus,species,class,order,family,domain,kingdom,phylum
B) species,genus,family,order,class,phylum,kingdom,domain
C) domain,kingdom,phylum,class,order,family,genus,species
D) class,order,family,genus,species,kingdom,phylum,domain

E) B) and D)
F) B) and C)

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Which of the following lists of features exemplifies the domain Archaea?


A) Unicellular,varying branched lipids in their cell membrane,no nuclear envelope,and contain some introns
B) Multicellular,varying branched lipids in their cell membrane,no nuclear envelope,and contain some introns
C) Unicellular,unbranched phospholipids in their cell membrane,no nuclear envelope,and contain some introns
D) Unicellular,varying branched lipids in their cell membrane,nuclear envelope,and contain some introns

E) None of the above
F) A) and B)

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