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Campbell Biology in Focus

Biology

Quiz 20 :

Phylogeny

Quiz 20 :

Phylogeny

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Although hummingbirds and house flies both use wings to fly,this similarity is not based upon closely shared ancestry but rather on evolution and adaptation as a result of survival and reproduction in a given environment.The term best describing such a phenomenon is
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C

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Which statement about the relationship between phenotypic and genetic attributes is correct?
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A

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From the list below,select the correct format for the binomial (scientific name)of the species the monarch butterfly.
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A

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The term homoplasy is most applicable to which of the following features?
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If organisms A,B,and C belong to the same class but to different orders,and if organisms D,E,and F belong to the same order but to different families,which of the following pairs of organisms would be expected to show the greatest degree of structural homology?
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The various taxonomic categories (genera,classes,etc. )of the hierarchical classification system differ from each other on the basis of
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What evidence suggests that limbless bodies are the result of convergent evolution of snakes and lizards?
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Sister taxa
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In addition to naming species,Linnaeus also grouped species into a hierarchy of increasingly inclusive categories.The largest category that would include closely related species is the
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The common ancestors of birds and mammals were very early (stem)reptiles,which almost certainly possessed three-chambered hearts (two atria,one ventricle).Birds and mammals,however,are alike in having four-chambered hearts (two atria,two ventricles).The four-chambered hearts of birds and mammals are best described as
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When hypothesizing a possible phylogeny in order to classify taxa,scientists incorporate systematics to
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Some molecular data place the giant panda in the bear family (Ursidae)but place the lesser panda in the raccoon family (Procyonidae).Consequently,the morphological similarities of these two species are probably due to
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What is one common mistake taxonomists may make when attempting to place seemingly closely related species into a shared classification group?
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The importance of computers and computer software to modern cladistics is most closely linked to advances in
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Which of the following are the best examples of homologous structures?
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Four relatively recent fossil species were recovered,and when the DNA was extracted,investigators observed that Species W and Z both had long finger bones,and species X and Y had short finger bones.Based upon this information and the hypothetical molecular data below,sequenced from common regions in one gene of their DNA,which two species are the most closely related to each other? Species W: Species X: Species Y: Species Z: AACATTGCTT AACCGCGCGT AGCAGCGCTT AACCGCGCTT TTGTAACGAA TTGGCGCGCA TCGTCGCGAA TTGGCGCGAA
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A potential source of confusion in constructing a phylogeny tree is similarity between organisms that is due to
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Linnaeus was a "fixist" who believed that species remained fixed in the form in which they had been created.Linnaeus would have been uncomfortable with
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Corvids are a large family of birds that includes many species of ravens,jays,crows,and magpies.It was recently discovered that numerous birds in this family are an important vector for the West Nile virus because infected mosquitoes may pass the virus to these birds.Not to mention other species: there are over 35 species crows across the world alone and more than 3,500 species of mosquitoes across 41 different genera.Taken together,these facts demonstrate that it is critical that global societies and scientists
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What is true about this phylogenetic tree? img
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