Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Chapter 19, Problem 2AC
Applying the Concepts
2. During major floods, only the topmost branches of submerged trees may be visible above the. water. If you were asked to sketch the branches below the surface of the water solely on the basis of the positions of the exposed tips, you would be attempting a reconstruction somewhat similar to the “family tree” by which systematists link various organisms according to their common ancestors (analogous to branching points). What sources of error do both exercises share? What advantages do modern systematists have?
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Which of the following is FALSE regarding phylogenetic trees?
1) The branch lengths on the tree are scaled to molecular (DNA) changes and/or time.
2)Phylogenetic trees have shown us that there is much more bacterial diversity compared to eukaryotes.
3) Phylogenetic trees show the evolutionary relatedness of different organisms.
4). The branch lengths on the tree depict abiotic and biotic factors affecting speciation.
Systematics and Evolution
What is the importance of homology in systematics?
Find a current, credible phylogenetic tree representing any group of organisms (your choice)! Draw that tree and on it indicate nodes, synapomorphes, monophyletic, polyphyletic, and paraphyletic groups (make sure the image you choose is complex enough to show all these groups). Below your drawing, in paragraph form, describe the relationships of four of the members on your tree based on how a phylogenetic tree is interpreted
Chapter 19 Solutions
Biology
Ch. 19.1 - Analysis of human chromosome 2 revealed that it...Ch. 19.1 - Origin of a Killer Analysis of nucleotide...Ch. 19.1 - explain why scientific names are necessary?Ch. 19.1 - describe the type of similarities that...Ch. 19.1 - Prob. 3CYLCh. 19.2 - Prob. 1TCCh. 19.2 - Prob. 1CYLCh. 19.2 - explain how scientists discovered that prokaryotes...Ch. 19.3 - Prob. 1HYEWCh. 19.3 - Prob. 1CYL
Ch. 19.3 - Prob. 2CYLCh. 19.4 - Prob. 1CYLCh. 19.4 - Prob. 2CYLCh. 19.4 - Prob. 1CTCh. 19 - Prob. 1MCCh. 19 - To be informative for reconstructing the phylogeny...Ch. 19 - Prob. 3MCCh. 19 - In modern systematics, classifications are...Ch. 19 - Which of the following includes all the domains...Ch. 19 - Prob. 1FIBCh. 19 - Prob. 2FIBCh. 19 - In Linnaean classification, the eight major...Ch. 19 - Systematists determine the evolutionary...Ch. 19 - Prob. 5FIBCh. 19 - The number of named species is about ________, but...Ch. 19 - What contributions did Linnaeus and Darwin make to...Ch. 19 - Prob. 2RQCh. 19 - What techniques might you use to determine whether...Ch. 19 - Only a small fraction of the total number of...Ch. 19 - In England, daddy longlegs refers to a long-legged...Ch. 19 - Why are species designations of asexually...Ch. 19 - Applying the Concepts The pressures created by...Ch. 19 - Applying the Concepts 2. During major floods, only...Ch. 19 - Consider the following list of groups: (1)...
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- On a phylogenetic tree, which term refers to lineages that diverged from the same place? sister taxa basal taxa rooted taxa dichotomous taxaarrow_forward1. Moss and lichen are easily confused for each other. Discuss how this is an example of convergent evolution and how each are different. 2. Describe three examples of humans and their relationship with their gut symbionts.arrow_forwardWhat would be 1 or 2 good biology careers for Phylogeny, modern taxonomy, fungi, plants, and animals, kingdoms, domains, viruses, and viroids, protists and prions? And whyarrow_forward
- Please just solve question 5, thanku! 2.Clades can be described as "natural groups."Why do you Bthink this is so？ 3.What do the“tips"and“branches"of a phylogenetic tree represent？ 4.Describe how you“trace ancestors back through time"on a phylogenetic tree. 5.Compare and contrast traditional and phylogenetic classification systems. (a）What are the advantages and disadvantages of each？ (b)Think of an example of when it would be useful to use a traditional classification.Why would this system be the best choice in this case？ (c)Think of a situation where it would be useful to use phylogenetic classification system.Why would this system be the best choice in this case？ 6. Traditional and phylogenetic classification systems usually place species in the same groups. For example，both systems place lions and tigers together，and horses.arrow_forwardFrom the pictures interpret the tree using real branch lengths. What can you infer? How many major clades can you see? Do they belong to the same class, order, family, and genus? Why or why not?arrow_forward[Zoology - Cladogram] Can you figure out where did I go wrong?arrow_forward
- Is all life on this planet a single clade? Define your terms and defend your answer. Please answer very soon will give rating surelyarrow_forwardQuestion:- Do you think, autapomorphy conveys a lot of information about phylogenetic relations hip? Please explain the reasoning.arrow_forwardFor novice biologists, taxonomy and phylogenetics are difficult concepts to understand and keep separate. This confusion is made worse because modern taxonomic methods make use of molecular tools. Write an essay that contrasts taxonomy to phylogenetics and explain how both disciplines are important to our understanding of species and evolution. Your essay should include a description of taxonomy and phylogenetics, as well as a detailed explanation about how information is represented in a phylogenetic tree or a cladogram.arrow_forward
- choose correct option nd Do explain 1. Which of the phylogenetic trees in the Figure is the most accurate? Explain your answer. Note: the mitochondria and chloroplasts are from maize, but they are treated as independent “organisms” for the purposes of this question. a. Tree (a) b. Tree (b) c. Tree (c) d. Tree (d) e. Tree (e)arrow_forwardComplete the sentences to make 6 true statements about the evolutionary relationships between the desserts based entirely on this phylogeny. Each statement you make must be unique (2 of your statements can't mean the same thing). There are many correct answers. The closest relative of _____ is ______ ____ is a synapomorphy (shared derived trait) of _____ and _____ The most recent common ancestor of ____ and _____ had _____ ____ is more closely related to ____ than to _____ ____ and ____ shared a common ancestor more recently than ____ and ____ ____ is equally related to ____ and ____arrow_forwardThis chapter shows a phylogenetic tree for the three domains of life, which is based on DNA sequence data for rRNA and other genes. Which of the following answers concerning the phylogenetic relationships found within this tree is incorrect? View Available Hint(s)for Part A Euryarcheotes are found in the Archaea Diatoms, Tubulinids, and Euglenozoans belong to the domain Eukarya Forams, Fungi, and Chlamydias belong to the domain Eukarya. Spirochetes belong to the domain Bacteria Ciliates, Red Algae, and Plants belong to the domain Eukarya.arrow_forward
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