CAMPBELL BIOLOGY-WORKBK.OF INVEST.CASES
5th Edition
ISBN: 9780134486468
Author: Urry
Publisher: PEARSON
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Chapter 26.3, Problem 3CC
WHAT IF? Ø Draw a phylogenetic tree that includes thc relationships from Figurc 25.7 and Figurc 26.16. Traditionally, all the taxa shown besides birds and mammals were classified as reptiles Would a cladistic approach support that Classification? Explain.
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Chapter 26 Solutions
CAMPBELL BIOLOGY-WORKBK.OF INVEST.CASES
Ch. 26.1 - VISUAL SKILLS: Which levels of the classification...Ch. 26.1 - Prob. 2CCCh. 26.1 - DRAW IT The bear family (Ursidae) is more closety...Ch. 26.2 - Decide whether each of the following pairs of...Ch. 26.2 - Prob. 2CCCh. 26.3 - Prob. 1CCCh. 26.3 - Prob. 2CCCh. 26.3 - WHAT IF? Draw a phylogenetic tree that includes...Ch. 26.4 - Explain how comparing proteins of two species can...Ch. 26.4 - WHAT IF? Suppose gene A is orthologous in species...
Ch. 26.4 - Prob. 3CCCh. 26.5 - What is a molecular clock? What assumption...Ch. 26.5 - Prob. 2CCCh. 26.5 - WHAT IF? Suppose a molecular dock dates the...Ch. 26.6 - Why is the kingdom Monera no longer considered a...Ch. 26.6 - Prob. 2CCCh. 26.6 - MAKE CONNECTIONS Explain how the origin of...Ch. 26 - Humans and chimpanzees are sister species. Explain...Ch. 26 - Why is it necessary to distinguish homology from...Ch. 26 - Prob. 26.3CRCh. 26 - When reconstructing phylogenies, is it more useful...Ch. 26 - Prob. 26.5CRCh. 26 - Prob. 26.6CRCh. 26 - In a comparison of birds and mammals, the...Ch. 26 - To appiy parsimony to constructing a phylogenetic...Ch. 26 - VISUAL SKILLS In Figure 26.4, which similarly...Ch. 26 - Three living species X, Y, and Z share a common...Ch. 26 - VISUAL SKILLS Based on the tree below, which...Ch. 26 - If you were using cladistics to build a...Ch. 26 - VISUAL SKILLS The relative lengths of the frog and...Ch. 26 - EVOLUTION CONNECTION Darwin suggested looking at a...Ch. 26 - SCIENTIFIC INQUIRY DRAW IT (a) Draw a...Ch. 26 - WRITE ABOUT A THEME: INFORMATION In a Short essay...Ch. 26 - SYNTHESIZE YOUR KNOWLEDGE This West Indian manatee...
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- The phylogenetic tree for 12 cat species (Felidae) reproduced at right was assembled from molecular sequence data. Which species is the domestic cats closest relative? Which clade is the sister taxon to tigers? Are bobcats more closely related to cougars or to ocelots? Source: From Warren E. Johnson et al. 2006. The late Miocene radiation of modern Felidae: A genetic assessment. Science 311:7377.arrow_forwardWHAT IF? What would a fossil record of life todaylook like?arrow_forwardAnswer the following questions about this phylogenetic tree. What animal represents the out group in this tree and why? What is the derived characteristic of the birds? What is the shared characteristic of 3 to 6? Which number represents the common ancestor of Ostriches and Hawks?arrow_forward
- Test Your Understanding Apply and Analyze 9. In interpreting a cladogram, (a) we can identify the specific ancestor of each taxon by tracing each branch back to the node closest to the root (b) taxa on the right side of a cladogram have evolved from the taxa on the left side (c) the relative placement of smaller branches allows us to determine the number of years since a particular taxon has evolved (d) we can determine relationships by tracing along the branches back to the most recent common ancestor (e) we must first identify horizontal gene transferarrow_forwardINTERPRET DATA Imagine that you discover a new animal in a rain forest. It has an elongated, segmented body with bristles, and it has no obvious head. Where would youplace this animal in the accompanying cladogram? Support your decision. Look at the more detailed cladogram inFigure 30-6a (in Chapter 30). What additional characteristicswould help you place your animal in this cladogram? Explainyour decision-making process.arrow_forwardWHAT IF? If you discovered a fossil of an extinct mammal that lived high in the Andes, would you predict thatit would more closely resemble present-day mammalsfrom South American jungles or present-day mammalsthat live high in Asian mountains? Explain.arrow_forward
- Along comes Dr Phil Bell and deep in the mines of Lightning Ridge, finds an amazingly preserved pterosaur that preserves feathers. He hypothesises that this means that feathers must have evolved before the origin of dinosaurs and therefore must have been primitive. Test this hypothesis using phylogenetic framework and provide a brief explanation of your process and whether or not you support Dr Bell's hypothesis.arrow_forwardImagine that you have the DNA sequences fromthe intron of a gene in three species called A, B,and C. Species A and B are most closely related,while C is more distantly related. The sequencesof A and B differ by 18 base pairs, A and C differby 26 base pairs, and B and C differ by 28 basepairs. Fossils show that species A and B divergedabout 1.2 Mya, but there is no fossil evidence asto when the most recent common ancestor ofall three species lived. Use the genetic data toestimate that date. What assumptions are youmaking to get this estimate?arrow_forwardGive typing answer with explanation and conclusion to all parts 1. What are the wings of birds and bees are an example of? 1. a homologous character 2. convergent evolution 3. derived characters 4. mosaic evolution 5. ancestral charactersarrow_forward
- WHAT IF? Suppose gene A is orthologous in species 1and species 2, and gene B is paralogous to gene A inspecies 1. Suggest a sequence of two evolutionary eventsthat could result in the following: Gene A differs considerably between species, yet gene A and gene B show littledivergence from each other.arrow_forward1. Differenciate the difference between taxonomy and systematics and give a brief examplanation about their relations. 2. Give certain primitive characters with all members of kingdom Animalia (adapted from Krempel's and Lee, p.7-9). List four primitive characters all humans share with all other animal, but not with any other living things. 3. List as many derived characters as possible that make Homo Sapiens different from all other great apes. Restrict your list to truly BIOLOGICAL characters.arrow_forward. WHAT IF? Imagine that we could replay the history oflife. Is it possible that a group of vertebrates that colonized land could have arisen from aquatic gnathostomesother than the lobe-fins? Explain.arrow_forward
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