Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Textbook Question
Chapter 28, Problem 7IQ
Fill in the names of the two major clades and the groups of protists on this phylogenetic tree of the super-group Unikonta.
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why is the kingdom protista not a valid group from an evolutionary perspective?
For each grouping that follows, briefly define, indicate where they
are on the tree and note if they are a monophyletic group:
-Metazoa
-Eumetazoa
-Bilateria
Modern taxonomic treatments rely heavily on phylogenetic data to classify organisms. In the past, taxonomists often used a morphological species concept, in which species were defined based on similarities in growth form. Give an example of how a morphological species concept would group a set of protists differently from how a phylogenetic species concept would.
Chapter 28 Solutions
Study Guide for Campbell Biology
Ch. 28 - The plastids of chlorarachniophytes are surrounded...Ch. 28 - Sleeping sickness is caused by the kinetoplastid...Ch. 28 - Sleeping sickness is caused by the kinetoplastid...Ch. 28 - Prob. 4IQCh. 28 - Prob. 5IQCh. 28 - Prob. 6IQCh. 28 - Fill in the names of the two major clades and the...Ch. 28 - Prob. 8IQCh. 28 - Evidence indicates that all plastids (except for...Ch. 28 - Prob. 1TYKM
Ch. 28 - Prob. 2TYKMCh. 28 - Prob. 3TYKMCh. 28 - Prob. 4TYKMCh. 28 - Prob. 5TYKMCh. 28 - Prob. 6TYKMCh. 28 - Prob. 7TYKMCh. 28 - ________ flagella with spiral or crystalline rod;...Ch. 28 - Mixotrophs a. have unicellular and multicellular...Ch. 28 - According to the theory of secondary...Ch. 28 - Prob. 3TYKCh. 28 - Prob. 4TYKCh. 28 - Prob. 5TYKCh. 28 - Genetic variation is generated in the ciliate...Ch. 28 - Prob. 7TYKCh. 28 - Prob. 8TYKCh. 28 - Prob. 9TYKCh. 28 - Prob. 10TYKCh. 28 - Which supergroup includes the land plants? a....Ch. 28 - Prob. 12TYKCh. 28 - Prob. 13TYKCh. 28 - Prob. 14TYK
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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
- The phylum Protista has often been referred to as a junk drawer of classification. Explain what is meant by this term.arrow_forwardCarotenoids in algae have evolved through primary and secondary endosymbiosis. provide a well-constructed phylogenetic tree to show where carotene, neoxanthin, zeaxanthin, violaxanthin, fucoxanthin, and lutein arose in the macrophytic, multicellular groups of algae. add descriptive and informative title to itarrow_forwardDifferentiate the three classes of Porifera by making a phylogenetic tree (Make your own illustration). Label the similarities and differences between these classes that splits or relates them in the phylogenetic tree.arrow_forward
- DNA sequence data for a diplomonad, a euglenid, a plant, and an unidentified protist suggest that the unidentified species is most closely related to the diplomonad. Further studies reveal that the unknown species has fully functional mitochondria. Based on these data, at what point on the phylogenetic tree in Figure 1 did the mystery protist’s lineage probably diverge from other eukaryote lineages? Explain.arrow_forwardWhy is 'protists' considered a polyphyletic grouping? Why do biologists still use it?arrow_forwardDoes the following phylogenetic tree provide evidence to support or refute the endosymbiosis hypothesis? Briefly explain your choice (1-2 sentences) Bacteria a-Proteobacteria Mitochondria Archaea Eukarya Excavata Discicristata Alveolata Stramenopila Rhizaria Plantae Opisthokonta Amoebozoaarrow_forward
- Now that you have explored the characteristics of the major groups of thealveolate protist, summarize the synapomorphy(s) that group them together as one clade. What unique features of each group distinguish them from others within the clade?arrow_forwardProtista is no longer accepted as a Kingdom because the organisms classified as protists show varying degrees of genetic relatedness. Protista is a paraphyletic grouping that historically encompassed organisms that did not fit into other classification groups. Select one: O True O Falsearrow_forwardHow are forams useful for researchers to study changes in ocean temperature over time? What are mixotrophs? What is endosymbiosis and why is it consider to be the source of eukaryotic diversity? Why are we confident this only happens once? What is primary and secondary endosymbiosis? Was there another endosymbiotic event that led to a third lineage? What group of organisms possesses a structure that might suggest this possibility and what is the structure? Why is the structure question different from the ancestor of other plastids? What are diatom blooms and why are they of particular interest to climate change scientists?arrow_forward
- Which clade does not have protists as members? Chromalveolata Excavata Unikonta Archaeplastida none of these are correctarrow_forwardA) A major difference between eukaryotic cells and prokaryotic cells is that eukaryotic cells Group of answer choices exhibit little if any compartmentalization of function are generally smaller than prokaryotic cells have a large degree of internal organization lack organelles have little if any internal organization B) Which of the following statements about protists is false? Group of answer choices Some protists are mixotrophic Certain protists share a common ancestor with land plants Some protists are photosynthetic prokaryotes which are similar to the ancestral chloroplast Protists are a polyphyletic group of organisms that often bear little resemblance to each other Although most protists are unicellular, some protists are multicellular as wellarrow_forwardGive 5 species of genus agrobacterium. Then make a clade. The clade must observe the rules of constructing a cladogram. Synapomorphies must describe all organisms above it but not below it.arrow_forward
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