Explain the aim of a branch of biology called systematics. (2) ANSWER: 2.1 2.2 FILL-IN-THE-BLANKS 2.2.1 is the process of categorizing phylogenetic information into a retrieval system consisting of many hierarchical levels or ranks. (2) ANSWER: 2.2.2 Identifying organisms and assigning names to them comprise the activity called (2) ANSWER: 2.2.3 The goal of is to identify evolutionary patterns that unite organisms. (2) ANSWER: ANSWER: evaluates patterns 2.2.4 These three fields of inquiry (above questions) are means by which of diversity. (2) ANSWER:

Explain the aim of a branch of biology called systematics. (2) ANSWER: 2.1 2.2 FILL-IN-THE-BLANKS 2.2.1 is the process of categorizing phylogenetic information into a retrieval system consisting of many hierarchical levels or ranks. (2) ANSWER: 2.2.2 Identifying organisms and assigning names to them comprise the activity called (2) ANSWER: 2.2.3 The goal of is to identify evolutionary patterns that unite organisms. (2) ANSWER: ANSWER: evaluates patterns 2.2.4 These three fields of inquiry (above questions) are means by which of diversity. (2) ANSWER:

Biology: The Unity and Diversity of Life (MindTap Course List)

15th Edition

ISBN:9781337408332

Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Chapter18: Organizing Information About Species

Section: Chapter Questions

Problem 1SQ

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Which of the following is not a characteristic of a dichoto-mous key?(a) The dichotomous key has a “quartet” of statements de-scribing the characteristics of organisms.(b) Each statement is followed by directions to go to an-other pair of statements until the name of the organismis identified.(c) It is the most common type of key used by biologists toidentify organisms based on their characteristics.(d) Paired statements present an “either-or” choice so thatonly one statement is true.(e) a and b.
Step 1: select two different species (one eukaryotic and another prokaryotic and dothe taxonomy. Step 2: Classify each one based on modern taxonomy, and write their scientific namein three different ways based on Linnaeus. Step 3:Describe their dichotomous key and show how far they are in their taxonomyfrom each other and describe how they interact together in the ecosystem basedon what you studied. Step 4: - Take screenshots of their location in the phylogenetic tree
I am having a hard time understanding the parts of a phylogenetic tree? What I mean by that is I don't know how to idenitfy what branches, nodes, and clades are? I know the definitions but I jsut keep getting confused. I also need help with knowing how closely related certain species are?
1. Which describes the modern classification system?a. based on evolutionary relationshipsb. called Linnean classificationc. based on similar appearancesd. called Darwinian classification2. If two organisms are in the same clade, what can you predict about theirrelationship?a. They are not closely related.b. They share a common ancestor.c. They compete for resources.d. One organism evolved into the other organism. 3.Which best describes traditional classification?a. It is based on shared characteristics.b. It is based on evolutionary relationships.c. It is called phylogenetic classification.d. It is called cladistics
How do the morphological, biological, and phylogenetic speciesconcepts differ? (Please mention answer and explanation section separately. mention atleast 3-4 points of difference)
Concept Map: Complete the attached Systematics Concept Map. Type your answer on each level in the space provided. Be sure to include your name; save the file to your computer, Requirements Levels and Key Terms: Levels and Key Terms LevelTerms Level I:Systematics Level II:Phylogeny Biological diversity Level IIITaxonomy Cladistic analysis Level IV:Identification of species Shared primitive characters Classification of species Dichotomously branching phylogenetic tree Shared derived characters Level V:Binomial Genus, family, order, class, phylum, kingdom Homologous similarities Relative time of origin Fossil records Outgroup comparison Clade Degree of divergence Level VI:Molecular comparisons (DNA, protein) Genus and species Morphology Fossils, DNA, and protein comparisons
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.
Each is an essential operation of classification except _________________.1. crossing organisms in question for data2. describing related groups3. fitting groups into a formal hierarchy4. naming groups5. cladistic
Examine 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.
Practice bio question: Define the term unikont and explain the current taxonomic interpretation of where unikonts arose on the phylogenetic tree of life.
Select the reason why is the morphospecies concept problematic for scientists,1. All of the above2. This concept allows scientists to define too many species because it is entirely subjective3. You can get cryptic species that look too similar to identify4. Genetic information might reveal that there are more or fewer species than what the morphology of the organisms implies
With improving technology, acquiring DNAsequences from different organisms becomeseasier each year. With that in mind, some authors(e.g., Scotland et al. 2003, Systematic Biology52 [4]: 539–548) have suggested that the use ofmorphological data is less important than DNAsequence data and have called for less emphasison the use of comparative morphology in building phylogenies. Other authors maintain thatdespite the explosion of molecular data available, morphology still has an important role inphylogenetics (for examples, see Wiens 2004,Systematic Biology 53 [4]: 653–661 and Will andRubinoff 2004, Cladistics 20 [1]: 47–55). Whatare the reasons for and against using morphological data in phylogenetic reconstruction?When might morphological data be especiallyimportant?