Campbell Biology: Custom Edition
18th Edition
ISBN: 9781323717271
Author: Urry, Cain, Wasserman, Minorsky, Reece
Publisher: PEARSON C
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 33, Problem 7TYU
Evolution connection • Interpret thf data Draw a phylogenetic tree of Bilateria that includes the ten phyla of bilaterians discussed in detail in this chapter. Label eath brauch that leads to a phylum with a C, P, ur A, depending on whether members of thc phylum are coelomates (C), pseudocoelomutes (P), or acoelomatos (A). Use your labeled tree to answer the following questions:
- (a) For each of the threc major clades of bilaterians, what (if anything) can be inferred about whether the common ancestor of the clade had a true coelom?
- (b) To what extent has the presence of a true coelom in animals changed over the course of evolution?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Download a phylogenetic tree of Bilateria that includes the ten phyla of bilaterian discussed in this module. From the tree, be able to identify whether members of the phylum are coelomates (C), pseudocoelomates (P), or acoelomates (A). Use your labeled tree to answer the following questions:
a) For each of the three major clades of bilaterian, what can be inferred about whether the common ancestor of the clade had a true coelom?
b) To what extent has the presence of a true coelom in animals changed over the course of evolution?
Which of the following is considered a synapomophy of the Kingdom
Disciristatae? *
It exhibits the tubular cristae
Presence of a spiral or crystalline rod structure inside each of their flagella
some taxa possess the excavate feeding groove
the presence of a kinetosome at the base of a flagellum
Which evolutionary novelty in the origin of eukaryotes paved the way for
endosymbiosis to occur. *
The evolution of digestive vesicles
The formation of endomembrane system
The appearance of a cytoskeleton.
the formation of a nuclear membrane
The phylogenetic tree in Exercise 1 above shows an outdated relationship between Brachiopoda, Bryozoa, and Mollusca. We now know that: (1) Brachiopoda is more closely related to Mollusca; and (2) Bryozoa forms the sister-group to the clade formed by Brachiopoda+Mollusca. In the space below draw a phylogenetic tree showing the correct interrelationships among the 5 clades listed:
Bryozoa:
Brachiopoda:
Linguliformea:
Craniiformea: Rhynchonelliformea:
Please include mollusca. Should be 6 classes total
Chapter 33 Solutions
Campbell Biology: Custom Edition
Ch. 33.1 - Prob. 1CCCh. 33.1 - Prob. 2CCCh. 33.2 - Compare and contrast the polyp and medusa forms of...Ch. 33.2 - VISUAL SKILLS Use the cnidarian life cycle...Ch. 33.2 - MAKE CONNECTIONS Many new animal body plans...Ch. 33.3 - Prob. 1CCCh. 33.3 - Prob. 2CCCh. 33.3 - MAKE CONNECTIONS Explain how the molluscan foot...Ch. 33.4 - Prob. 1CCCh. 33.4 - Describe two adaptations that have enabled insects...
Ch. 33.4 - MAKE CONNECTIONS Historically, annelids and...Ch. 33.5 - Prob. 1CCCh. 33.5 - WHAT IF? The insect Drosophila melanogaster and...Ch. 33.5 - MAKE CONNECTIONS Describe how the features and...Ch. 33 - Lacking tissues and organs, how do soonges...Ch. 33 - Describe the cnidarian body plan and its two major...Ch. 33 - is the lophotrochozoan clade united by unique...Ch. 33 - Describe some ecological roles of nematodes and...Ch. 33 - You've read that echinoderms and chordates are...Ch. 33 - A land snail, a clam and an octopus all share...Ch. 33 - Prob. 2TYUCh. 33 - The water vascular system of echinoderms (A)...Ch. 33 - Prob. 4TYUCh. 33 - In Figure 33.2, which two main clades branch from...Ch. 33 - MAKE CONNECTIONS In Figure 33.8, assume that the...Ch. 33 - Evolution connection Interpret thf data Draw a...Ch. 33 - Prob. 8TYUCh. 33 - Prob. 9TYUCh. 33 - SYNTHESIZE YOUR KNOWLEDGE Colleclively, do these...
Knowledge Booster
Learn more about
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
- Redraw the phylogenetic tree for Cnidarians showing only the relationships between Scyphozoa, Rugosa, Tabulata, and Scleractinia. Circle the Anthozoa clade.arrow_forwardCreate a body plan table (Insert → Add Table) for the following animal phyla: Porifera, Cnidaria, Platyhelminthes, Mollusca, Annelida, Nematoda, Arthropoda, Echinodermata, and Chordata. Describe each phylum by identifying the following body plan features. 1) Symmetry: Asymmetrical, Radial, or Bilateral 2) Tissue type: Parazoa, Eumetazoa (diploblastic), or Eumetazoa (triploblastic) 3) Body cavity (if triploblastic): Acoelomate, Psuedocoelomate, or Coelomate 4) Developmental mode (if Coelomate): Protostome or Dueuterostome Note: Depending on the body plan, features 3 & 4 may not apply to specific phyla. * Please answer 1) and 2) only. Reposting question for other two to be answered.arrow_forwardPHYLOGENETIC ANALYSIS: Refer to the Pratachardaten phylogenetic tree. Write your answers for the following, phrase sentence form. 1. Are deuterostomes in or in related to protostome (Yes or No)? Explain briefly 2. What Syorlesiamecebic character Protostomes Deuterostomes is the CHORDATES Tripartite coelom, larva Chordate ancestor (Notochord, post-anal tail, dorsal hollow nerve cord) of deuterostomes? 3. What is the Deuterostome ancestor (Gill slits) of echinoderms and character Bilateral ancestor (Dorsoventral axis, mesoderm, through gut, cephalization, hox domains in trunk, tinman heart, pax6/emw/otx domains in head) hemichordates? 4. Is the group of chordates considered monophyletic (Yes or No)? Explain briefly. eozoskpog- FLophotrochozoa Echinoderms Hemichordates Urochordates Cephalochordates Vertebratesarrow_forward
- 14. Nematode Life Cycle Matching: Match each of the descriptions below with the correct nematode worm species (A-D). Note that some descriptions may not apply to any of the 4 species (in which case just write “none") and some descriptions may apply to multiple worms species (in which case write the letters of all applicable species). (A) Dirofilaria (heartworms) (B) Dracunculus (Guinea worm) (C) Ascaris (D) Hookworms 1. Life cycle includes only a single host 2. The infective stage is a free-living larva that can enter the skin directly 3. On target to become the first parasite-caused human disease to be eradicated 4. Has an arthropod intermediate host 5. Traditional treatment involves winding the female worm around a matchstick 6. Infections can be prevented by not defecating on soill improving sanitation of soil 7. Female lays eggs around the anus of the host 8. Produce microfilaria that circulate in the blood 9. Has multiple larval stages and a snail intermediate host 10. Migrate…arrow_forwardBryozoan and Hydroid polyps share several apparent similarities with each other when it comes to shape, function, and behavior yet they are distinctly different in several ways as well. Your challenge is to identify two separate functions (ie feeding, exchange, protection, reproduction) that these structures are utilized for and then contrast how the polyp arrays are either used in a similar or different manner to achieve this goal. For the latter, you may consider such things as structure, mechanics, behavior etc. Your focus should be on the polyp itself and not on any structure(s) that house the polyp. To summarize - list two specific functions that polyp structures are used for. For each function, discuss similarities and differences in the way that bryozoans and hydroids use their polyps to achieve these functional goals.arrow_forwardWhich of the following Amebic trophozoites best fit the following descriptions ? Motility: Sluggish , nonprogressive with blunt pseudopods • Nucleus: 1 Peripheral chromatin: Coarse granules , irregular in size and distribution • Karyosomal chromatin: Large , discrete , usually eccentric Cytoplasmic inclusions: Bacteria , yeasts other materials A. Entamoeba coli B. Endolimax nana C. lodamoeba bütschlii D. Entamoeba hartmanni E. Entamoeba histolytica/E. dispararrow_forward
- Contrast the field of systematics with that of taxonomy and phylogenetics. How is systematics defined? How is taxonomy and phylogenetics similar or different from systematics? How did the systematic placement of Calostoma change our understanding of this taxon, in regards to the study Phylogeny of Calostoma, the gelatinous-stalked puffball, based on nuclear and mitochondrial ribosomal DNA sequences by Hughey and colleagues?arrow_forwardRotifers and acanthocephalans previously belonged to separate phylum. But recent molecular studies and genome analysis show that acanthocephalans are sister groups of a class under Phylum Rotifera. And thus, the two should belong to a single taxon. Aside from the molecular evidences, what morphological and physiological features of both the rotifers and acanthocephalans support this claim? Explain your answer.arrow_forwardMake a phylogenetic tree just including the following= phylum nematoda (enoplea and chromadorea) phylum nematomorpha Phylum Priapulida Phylum Kinorhyncha Phylum Loricifera Phylum Tardigrada Phylum Onychophora Phylum arthropoda -include subphylums and classesarrow_forward
- Which of the following features does not distinguish humans as a member of phylum Chordata? Human embryos undergo indeterminate cleavage A spinal cord runs along an adult human’s dorsal side Human embryos exhibit pharyngeal arches and gill slits, The human coccyx forms from an embryonic tail.arrow_forwardDevelop a KEY to the CLASSES of Phylum ECHINODERMATA: Asteroidea, Ophiuroidea,Echinoidea, Holothuroidea.arrow_forwardMatch the following groups under Phylum annelida to the following characters: Match each item to a choice: Branchiobdellida Hirudenea Acanthobdellida Oligochaeta Polychaeta Choices: : Loss of remaining setae; 34 metameres : Anterior body sucker; 15 metameres : Presence of clitellum; but without superficial annuli E Posterior body sucker; 30 metameres : Parapodia; complex headarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Phylogeny and the Tree of Life; Author: Professor Dave Explains;https://www.youtube.com/watch?v=KLMn4XwS8Tw;License: Standard YouTube License, CC-BY