Explain why plants being polyploid makes using the phylogenetic species concept difficult to use. Be sure to explain how the phylogenetic species concept attempts to classify organisms into distinct species. How can scientists still use the phylogenetic species concept to classify land plants, despite the majority being polyploid? (What do they do to get around this problem?)

Explain why plants being polyploid makes using the phylogenetic species concept difficult to use. Be sure to explain how the phylogenetic species concept attempts to classify organisms into distinct species. How can scientists still use the phylogenetic species concept to classify land plants, despite the majority being polyploid? (What do they do to get around this problem?)

Biology Today and Tomorrow without Physiology (MindTap Course List)

5th Edition

ISBN:9781305117396

Author:Cecie Starr, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Christine Evers, Lisa Starr

Chapter1: Invitation To Biology

Section: Chapter Questions

Problem 1FIO: Figure 1.7 Taxonomic classification of five species that are related at different levels. Each...

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DRAW IT Use the letters a–d to label where on the phylogenetictree each of the following derived characters appears.(A) flowers(B) embryos(C) seeds(D) vascular tissue
A cladogram used in a comparison of morphology among taxa had equal length branches, but when looked at in a blast webpage using the given gene sequence, the branches all had different lengths. Why is that?
Phylogenetic trees are used to show the evolutionary relationships among various biological species and are usually based upon shared derived characters. In constructing phylogenetic trees, it is useful to first draw up a character table to show the presence or absence of characters among the various groups of organisms being studied. a. Draw up a character table based upon the following shared derived characters of land plants: flowers, seeds, vascular tissues, and dependent embryos. Your character table must include the names/descriptions of the plant groups that are being characterized. b. Construct a phylogenetic tree based on this data.
Phylogenetic trees are constructed based on parsimony the idea that the simplest answer is the misy likely. Explain why a parsimonious tree is a likely but not the only possible answer when depicting evolutionary relationships.
Discuss the problems in developing an accurate phylogenetic tree. Do you think it is possible to create a completely accurate universal phylogenetic tree? Explain your answer.
Below are phylogenetic trees depicting the relationships among four species, A, B, C, and D. Which of the following statements is correct? Tree (1) and Tree (2) are the same tree. Tree (2) and Tree (4) are the same tree. Tree (2) and Tree (3) are the same tree. All four trees are in fact the same tree. All four trees are in fact different trees.
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.
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Using the picture below, make a phylogenetic tree. Make sure that all seven (7) creatures, including the outgroup, are on the tree and assigned their own branch. Make sure all parts of the tree are properly labeled. Circle the different clades/monophyletic groups (many will be overlapping and that's okay). ALSO, In the lineage leading to each new node, be sure to indicate the shared derived character and how it has changed (e.g., if the synapomorphy was having eyes, we would indicate this on the tree by drawing something like this no eyes > eyes). Don't forget to add the root! Finally, circle all your clades/ monophyletic groups and give them informative names like a good little systematist! Please follow all these steps to create the phylogenetic tree. Do it correctly and completely. Do not use previous versions/answers.
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a) What is a phylogenetic tree? b) What is a branch point? c) What are sister taxa? d) What is a ‘rooted’ phylogenetic tree?
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