Campbell Biology in Focus
3rd Edition
ISBN: 9780134710679
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Rebecca Orr
Publisher: PEARSON
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Chapter 20.2, Problem 1CC
Decide whether each of the following pairs of structures more likely represents analogy or homology, and explain your reasoning: (a) a porcupine's quills and a cactus's spines; (b) a cat’s paw and a human’s hand; (c) an owl’s wing and a hornet’s wing.
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MUSTAFA OZERIAFPIGetty Images
Radiometric dating and the cranial capacity measurements are back from the paleolab for the specimen your friend at the museum called you about. She calls again to tell you the results. The cranial capacity is 442 cubic centimeters and it dates to 3 million years ago. After having identified the cranial traits present, you can now take this new information and provide, at least, the genus you think it could belong to in order to help your friend.
Based on this information, choose from the options below, the category to which you think it most likely belongs.
Group of answer choices
Robust Australopithecine
early Genus Homo
Pre-Australopith
Late Genus Homo
Gracile Australopithecine
Premodern
For each of the following sets of traits and descriptors, give the name of the most specific
Primate taxon that possesses ALL of the given features. In other words, don't report a
suborder or superfamily name if a family or even a genus is sufficient to include all
primates sharing the three sets of traits. In each case, you will need to be no more specific
than the taxa I have asked you to know for the final exam.
1)
suspensory anatomy (full 360° rotation in shoulder)
Y-5 molar pattern
fist walking
partial post-orbital closure
dry nose: nostrils with internal moist membranes
all members are nocturnal
2)
3)
fused frontal bone
no external tail
IMI less than 100
4)
brachiator anatomy
bribban.
2:1:2:3 dental formula
ischial callosities
Chapter 20 Solutions
Campbell Biology in Focus
Ch. 20.1 - Based on the tree in Figure 20.4, are leopards...Ch. 20.1 - Which of the trees shown here depicts an...Ch. 20.1 - Prob. 3CCCh. 20.2 - Decide whether each of the following pairs of...Ch. 20.2 - WHAT IF? Suppose that two species, A and B, have...Ch. 20.3 - Prob. 1CCCh. 20.3 - The most parsimonious tree of evolutionary...Ch. 20.3 - Prob. 3CCCh. 20.4 - What is a molecular clock? What assumption...Ch. 20.4 - MAKE CONNECTIONS Review Concept 14.5. Then...
Ch. 20.4 - WHAT IF? Suppose a molecular clock dates the...Ch. 20.5 - Why is the kingdom Monera no longer considered a...Ch. 20.5 - Prob. 2CCCh. 20.5 - Prob. 3CCCh. 20 - In a comparison of birds and mammals, the...Ch. 20 - To apply parsimony to constructing a phylogenetic...Ch. 20 - Prob. 3TYUCh. 20 - Prob. 4TYUCh. 20 - Prob. 5TYUCh. 20 - If you were using cladistics to build a...Ch. 20 - Prob. 7TYUCh. 20 - SCIENTIFIC INQUIRY DRAW IT (a) Draw a phylogenetic...Ch. 20 - FOCUS ON EVOLUTION Darwin suggested looking at a...Ch. 20 - Prob. 10TYUCh. 20 - SYNTHESIZE YOUR KNOWLEDGE This West Indian manatee...
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- For each of the following sets of traits and descriptors, give the name of the most specific primate taxon that possesses ALL of the given features. In other words, don't report a suborder or superfamily name if a family or even a genus is sufficient to include all primates sharing the three sets of traits. In each case, you will need to be no more specific than the taxa I have asked you to know for the final exam. 1) 2) 3) 4) post-orbital bar with no post-orbital closure wet rhinarium all members nocturnal usually both prehensile hands & feet forward facing eyes retains the clavicle (collar bone) fused frontal bone no tail IMI less than 100 brachiator anatomy 2:1:2:3 dental formula ischial callositiesarrow_forwardRadiometric dating and the cranial capacity measurements are back from the paleolab for the specimen you discovered at the site you were excavating in South Africa. Lab results indicate that the cranial capacity is 520 cubic centimeters and it dates to about 1.5 million years ago. After having identified the cranial traits present, you can now take this new information and provide, at least, the genus to which you think it may belong. Based on this information, choose from the options below, the category to which you think it most likely belongs. -Pre-australopith -Premodern Human -Gracile Australopithecine -Early Genus Homo -Robust Australopithecine -Late Genus Homoarrow_forwardRadiometric dating and the cranial capacity measurements are back from the paleolab for the specimen you discovered at the site you were excavating in South Africa. Lab results indicate that the cranial capacity is 520 cubic centimeters and it dates to about 1.5 million years ago. After having identified the cranial traits present, you can now take this new information and provide, at least, the genus to which you think it may belong. Based on this information, choose from the options below, the category to which you think it most likely belongs. Group of answer choices Pre-australopith Premodern Human Gracile Australopithecine Early Genus Homo Robust Australopithecine Late Genus Homoarrow_forward
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