Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 20, Problem 3VCQ
Figure 20.11 What is the largest clade in this diagram?
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Clade = __________________.
How many clades are represented in Figure 20?
In the phylogenetic tree below, which group(s) are monophyletic? (select all that apply)
Group 1
Group 2
Group 3
O Group 1
O Group 2
O Group 3
O None of these groups are monophyletic
Chapter 20 Solutions
Biology 2e
Ch. 20 - Figure 20.6 At what levels are cats and dogs...Ch. 20 - Figure 20.10 Which animals in this figure belong...Ch. 20 - Figure 20.11 What is the largest clade in this...Ch. 20 - What is used to determine phylogeny? mutations DNA...Ch. 20 - What do scientists in the field of systematics...Ch. 20 - Which statement about the taxonomic classification...Ch. 20 - On a phylogenetic tree, which term refers to...Ch. 20 - Which statement about analogies is correct? They...Ch. 20 - What do scientists use to apply cladistics?...Ch. 20 - What is true about organisms that are a part of...
Ch. 20 - Why do scientists apply the concept of maximum...Ch. 20 - The transfer of genes by a mechanism not involving...Ch. 20 - Particles that transfer genetic material from one...Ch. 20 - What does the trunk of the classic phylogenetic...Ch. 20 - Which phylogenetic model proposes that all three...Ch. 20 - How does a phylogenetic tree relate to the passing...Ch. 20 - Some organisms that appear very closely related on...Ch. 20 - List the different levels of the taxonomic...Ch. 20 - Dolphins and fish have similar body shapes. Is...Ch. 20 - Why is it so important for scientists to...Ch. 20 - Describe maximum parsimony.Ch. 20 - Compare three different ways that eukaryotic cells...Ch. 20 - Describe how aphids acquired the ability to change...
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- The phylogentic tree below depicts the evolutionary relationships of the following species A through M.arrow_forwardEncircle the Monophylethic group, Paraphyletic group and Polyphyletic group in the phylogenetic trees given in the picturearrow_forwardWhy is Charophytes located at the bottom of the Cladogram?arrow_forward
- Based on the phylogenetic tree diagram in Figure 34.2, predict which vertebrate groups should have lungs or lung derivatives. Explain.arrow_forwardFigure 12.3 In what levels are cats and dogs considered to be part of the same group?arrow_forwardExamine the following phylogenetic tree illustrated in Figure shown in the first picture. In general, what does a phylogenetic tree illustrate? How do you compare the relationships of organisms BB, CC, and DD? Given the following organisms in the Table in the second picture, number them in terms of which is relatively closest and distant. Number 1 refers to closest.arrow_forward
- how many clades are in this tree?arrow_forwardBony fishes, frogs, and salamanders all produces eggs surrounded by a gelatinous layer and need to be kept in water. Turtles, lizards, and birds lay eggs with thick shells that can survive on land. Turtles, lizards and birds form what kind of phylogenetic group? (paraphyletic, monophyletic, polyphyletic)arrow_forwardChoose one of the phylogenetic schemes in Figure 10.5 and explain why you feel it is preferable to the others.arrow_forward
- The diagram below represents the ranges of 3 species (A, B, and C), which are separated by a mountain range and river. It has been hypothesized that these three species arose via vicariance ecological speciation. Specifically, the entire area was originally occupied by a single species. Its range was split first by the mountain range. Later, the river formed, separating populations on the eastern side of the mountains. If this hypothesis is correct, phylogenetic analysis should reveal that: NIS 4 44444 U LEL B All three species are equally related to each other. Species A and B are each other's closest relatives (sister taxa). Species B and C are each other's closest relatives (sister taxa). Species A and Care each other's closest relatives (sister taxa).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_forwardThree species of orchid bees are in the genus Euglossa and one is in the genus Eulaema. You don’t know which Euglossa are most related. Draw a phylogenetic tree of these species, including the outgroup Apis (genus of honey bees).arrow_forward
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