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 9RQ
What do scientists use to apply cladistics?
- homologous traits
- homoplasies
- analogous traits
- monophyletic groups
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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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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
- Structures shared by species because of descent from a common ancestor is referred to as... Group of answer choices homology cladistics analogy homoplasy taxonomyarrow_forwardCladistics & Natural Selection Use the table below to answer the following questions about the different species Species 2 Species 3 Spots Character Species 1 Character State White White White = 0 Black = 1 Color Grey = 2 Spots = 3 %3D Height Short Short Tall Short = 0 Tall = 1 Sticky Rough Sticky = 0 Rough = 1 Texture Soft %3! Soft = 2 Part 1: Which species is the basal species (outgroup)? Part 2: The dominant trait for texture for Species 2 is sticky and the recessive trait is soft. The allele frequency for the dominant allele is 0.15. Calculate the frequency for the recessive allele in this population.arrow_forwardWhich of the following is a problem with applying the phylogenetic species concept? Some individuals we think are different species can interbreed Some individuals look exceedingly similar Increased DNA sequencing could lead to different definitions of species No one knows how to make a phylogenyarrow_forward
- In a cladistic analysis, a systematist groups together organisms that share: derived homologous traits. derived homoplastic traits. ancestral homologous traits. ancestral homoplastic traits. all of the above.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_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
- What is a taxon? is. a group of related species a group of related families a type of living organisms a group of any rankingarrow_forwardWhat is a cladogram? A cladogram is a diagram that shows relations among organisms. A cladogram uses lines that branch to end at groups of organisms with a common ancestor. The image shows the relationship among groups A, B, and C. Closely related organisms will have one or more SHARED TRAITS, indicated by the green and orange circles. 1. Which two organisms are most closely related? 2. The green dot indicates a trait that is shared by every animal on the diagram. Suggest a trait that would apply. 3. Animals A & B share a trait that animal C does not have, indicated by the orange circle. Suggest a trait that would apply. Source: https//commons wikimedia org/wiki/File Identical cladograms svg B.arrow_forwardWhen constructing phylogenetic trees, Biologists often adhere to the principle of "maximum parsimony". This means that; Scientists should not include an outgroup when constructing their trees Scientists rarely use DNA to construct phylogenetic trees The phylogenetic tree that is involves the fewest changes is probably correct Scientists do not use homologous characteristics in their treesarrow_forward
- The monarch butterfly (Danas plexippus) and the viceroy butterfly (Limenitis archippus) look almost identical. Which species concept might have led taxonomists to incorrectly classify them as the same species? VICEROY MONARCH binomial species concept phylogenetic species concept Linnaean species concept morphological species concept biological species conceptarrow_forwardDefine the following terms in your own words: Homologous character Character state Clade Cladogramarrow_forwardIn 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 monophyleticarrow_forward
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