BIOLOGY
13th Edition
ISBN: 2810017676413
Author: OpenStax
Publisher: OpenStax
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Textbook Question
Chapter 1, Problem 15RQ
Where in a phylogenetic tree would you expect to find the organism that had evolved most recently?
- at the base
- within the branches
- at the nodes
- at the branch tips
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When building a phylogenetic tree, where do you place a number used to designate a change in character state?options:
at a mark crossing the branch for the species that exhibits the new state
at a node where two branches diverge
at the end of a branch between the last species to exhibit the old state and the first to display the new state
Phylogenetic trees are diagrams used to reflect evolutionary relationships among organisms or groups of organisms. _______ trees have a single ancestral line to which all organisms in the diagram relate to. ______ do not have a common ancestor but do show relationships among species.
What does the trunk of the classic phylogenetic tree represent? a. single common ancestor b. pool of ancestral organisms c. new species d. old species
Chapter 1 Solutions
BIOLOGY
Ch. 1 - Figure 1.6 In the example below, the scientific...Ch. 1 - Figure 1.7 Decide if each of the following is an...Ch. 1 - Figure 1.16 Which of the following statements is...Ch. 1 - The first forms of life on Earth were plants...Ch. 1 - A suggested and testable explanation for an event...Ch. 1 - Which of the following sciences is not considered...Ch. 1 - The type of logical thinking that uses related...Ch. 1 - The process of helps to ensure that a scientist’s...Ch. 1 - A person notices that her houseplants that are...Ch. 1 - The smallest unit of biological structure that...
Ch. 1 - Viruses are not considered living because they...Ch. 1 - The presence of a membrane-enclosed nucleus is a...Ch. 1 - A group of individuals of the same species living...Ch. 1 - Which of the following sequences represents the...Ch. 1 - Where in a phylogenetic tree would you expect to...Ch. 1 - Although the scientific method is used by most of...Ch. 1 - Give an example of how applied science has had a...Ch. 1 - Name two topics that are likely to be studied by...Ch. 1 - Thinking about the topic of cancer, write a basic...Ch. 1 - Select two items that biologists agree are...Ch. 1 - Consider the levels of organization of the...Ch. 1 - You go for a long walk on a hot clay. Give an...Ch. 1 - Using examples, explain how biology can be studied...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Circle which of the phylogenetic trees is/are different from the one at the top:arrow_forwardWhat is the purpose of using an “outgroup” when reconstructing a phylogenetic tree? Write 4 points at leastarrow_forwardOn a phylogenetic tree, which term refers to lineages that diverged from the same place? a. sister taxa b. basal taxa c. rooted taxa d. dichotomous taxaarrow_forward
- Put characteristics on this phylogenetic tree.arrow_forwardMake phylogenetic tree with this organisms : Gray whale,Ginger, Peacock, Tiger, Rice, Cat, Pineapple, Crocodile, Box jellyfish, Bamboo Make it look like the picture example.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
- Do you find it easy to interpret phylogenetic trees? What aspects are the most challenging or what aspects of the tree can be easily misinterpreted? What strategies can students use to correct or avoid these common misinterpretations? Do you consider phylogenetic trees to be reliable indicators of evolutionary relationships? Include a reference.arrow_forwardWhat is the purpose of using an outgroup when reconstructing a phylogenetic tree? [at least mention 4 points]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
- Based on the past activities about constructing of phylogenetic trees, how do you distinguish characteristics between primitive and derived characteristics? provide and example to your answerarrow_forwardWhat is the purpose of using an “outgroup” when reconstructing a phylogenetic tree? (Write 4 points)arrow_forwardWhy is a classification system based on relatedness war objective than a classification system based on the comparison of observed characteristics. What do the tips and branches of a phylogenetic tree representarrow_forward
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