Biology: Life on Earth
10th Edition
ISBN: 9780321729712
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: Benjamin Cummings
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Textbook Question
Chapter 18, Problem 2RQ
What features would you study to determine whether a dolphin is more closely related to a fish or to a bear?
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Chapter 18 Solutions
Biology: Life on Earth
Ch. 18 - The science of naming and classifying organisms is...Ch. 18 - 2. 2. A scientific name consists of a(n) _________...Ch. 18 - In Linnaean classification, the eight major...Ch. 18 - 4. Systematists determine the evolutionary...Ch. 18 - Prob. 5FTBCh. 18 - The number of named species is about __________,...Ch. 18 - What contributions did Linnaeus and Darwin make to...Ch. 18 - What features would you study to determine whether...Ch. 18 - What techniques might you use to determine whether...Ch. 18 - 4. Only a small fraction of the total number of...
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- Mammals, like humans and apes, have 5 digits on their fore and hind limbs. Modern horses have 1. How might you recontrust the ancestral state of mammal tow number?a) investigate the number of toes on all extant horses and apesb) investigate the number of toes for other mammals and use parsimony to deduce the ancestral statec) investigate the number of toes for an outgroup that is closely related to mammals, for example reptiles or amphibiansd) either b or ce) all of the abovearrow_forwardWhich is NOT an example of a structural homology? Please choose all applicable options. a) All vertebrate embryos form pharyngeal pouches.b) Vertebrate forelimbs generally have the same number and a similar arrangement of bones.c) The same group of embryonic cells forms the adult jaw of a perch and of a dog.d) All organisms share a common genetic code.arrow_forwardWhat trait separates amphibians from primates on this cladogram? What separates rabbits and primates from crocodiles on this cladogram? Which organism is most related to the bird on this cladogram? What 5 traits do these two organisms share? Which organism will have DNA most similar to the bird? Which organism's DNA will differ the most from the bird?arrow_forward
- What does hindlimb shape say about the ancestry of dolphins and other cetaceans?arrow_forwardBased on their anatomical and behavioral differences, biologists previously placed humans and chimpanzees in different families, but now DNA sequence data suggest that they are closely related and should be placed in the same family. What are some advantages of using DNA sequences to decide how to classify organisms? What might be some disadvantages?arrow_forwardRepresent through a cladogram the evolutionary relationships among spiders, birds, porifera, Homo sapiens, lampreys, nematodes, tuna, clam and jellyfish by listing them in order from most closely related to most distantly related. Indicate in the cladogram where different types of body symmetry arise in the evolutionary process. pe youranswer here:arrow_forward
- Examine the image of the relatedness of vertebrates represented in this phylogenetic tree. Which statements are correctly inferred from this tree? Select all that apply. A) The mammals are the outgroup in this tree. B) Birds and dinosaurs share a recent common ancestor. C) Mammals and birds are more closely related than any other species. D) Turtles are equally as diverged from lizards and snakes as they are from crocodiles. E) Lizards and snakes are more recently diverged from each other than they are from crocodiles.arrow_forwardHow are shared ancestral characters and shared derived characters different? How is the concept of homology related to these concepts?arrow_forwardList five characters you have that are analogous to characters with the same function but of different ancestral origin in any other species.arrow_forward
- a) Is there a monophyletic group that includes only the tapir, rhinoceros, and equids (Horses)? If so, which animals are included? b) Is there a monophyletic group that includes only pronghorns and deer? If so, which animals are included? c) Is there a monophyletic that includes pigs and bovidss? If there is, what other animals would be a part of the monophyletic group?arrow_forwardWhat’s the difference between a dolphin fish and a dolphin mammal?arrow_forward(a) How do you describe the data from the amino acid sequence to anatomical features provided in the cladogram? Are they generally associated with one another? (b) do you agree that the more differences in amino acid sequence, the more closely related organisms are, if yes does that mean they shall be group under the same biological classification? (c) in the molecular data provided, describe how human and rhesus monkey relate with one another (d) why do you think 30 and chicken are different species despite the fact that they have the same sequence of amino acids for cytochrome c protein? help plssss, thank u! thank u!arrow_forward
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