Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 21.2, Problem 2CC
Summary Introduction
Introduction:
A phylogenetic tree is a diagram that presents the evolutionary relationship among different species based on biological diversity data. In a phylogenetic tree, species are found at the tip of the tree. Each branch point is called nodes and they represent divergent events. Most recent common ancestors lie at each branch point.
Systematics organizes every species into clades which are groups that includes ancestral species and all the descendants. Every taxon in the taxonomical hierarchy are considered as a monophyletic group. Monophyletic group is a taxon which is a clade. The order of taxonimical hierarchy is domain > supergroup > kingdom > phylum > class > order > family > genus > species.
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Chapter 21 Solutions
Principles of Biology
Ch. 21.1 - Refer back to Figure 4.8. Which of the three...Ch. 21.1 - Prob. 1CCCh. 21.1 - Prob. 1TYKCh. 21.1 - Prob. 2TYKCh. 21.2 - Prob. 1CCCh. 21.2 - Prob. 1TYKCh. 21.2 - Prob. 2CCCh. 21.2 - Prob. 2TYKCh. 21.2 - Prob. 3TYKCh. 21.3 - What shared derived character is common to the...
Ch. 21.3 - Prob. 2CCCh. 21.3 - Prob. 1TYKCh. 21.3 - Prob. 2TYKCh. 21.4 - Prob. 1BCCh. 21.4 - Prob. 1CCCh. 21.4 - Prob. 1TYKCh. 21.4 - An analysis of the number of neutral genetic...Ch. 21.5 - Prob. 1CCCh. 21.5 - Which of the following is an example of horizontal...Ch. 21 - Prob. 1TYCh. 21 - Which of the following is the correct order of the...Ch. 21 - Which type of taxon consists of organisms with the...Ch. 21 - Prob. 4TYCh. 21 - Prob. 5TYCh. 21 - Prob. 6TYCh. 21 - Prob. 7TYCh. 21 - Prob. 8TYCh. 21 - The concept that the preferred hypothesis is (lie...Ch. 21 - Prob. 10TYCh. 21 - Prob. 1CCQCh. 21 - What is a molecular clock? How is it used in...Ch. 21 - Prob. 3CCQCh. 21 - Prob. 1CBQCh. 21 - Prob. 2CBQ
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- Explain the following: Phylum Class Order Genusarrow_forwardIdentify the following in the sample cladogram below: plesiomorphy, symplesiomorphy, synapomorphy, autapomorphy, basal taxa, derived taxa.arrow_forwardGiven a cladogram for a group of species, what additional interpretation is needed to obtain a phylogenetic tree?arrow_forward
- Which of the following represents the most closely related group of organisms in the phylogeny shown above? A C E F Garrow_forwardDraw the cladogram for "organisms" A-J of the family "Boltidae". Include each of these letters and show where each "character" arose. asaparrow_forwardWhat is a phylum that is no longer considered for the rank of phylum and was demoted to family?arrow_forward
- To which taxon is B most closely related?arrow_forwardBased on the character matrix in the picture, draw a Venn diagram. Start with the character that is shared by all the taxa on the outside. Inside each box, write the taxa that have only that set of characters. Next, make a cladogram based on the matrix and Venn diagram.arrow_forwardFrom above answer the following and explain why you chose what?A) will you be considering I and J from tree to be monophyletic? B) is E to J on tree form monophyletic group? C) what is sister genus of C and D D) is E and G monophyletic?arrow_forward
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