Campbell Biology: Australian And New Zealand Edition + Mastering Biology With Etext
11th Edition
ISBN: 9781488687075
Author: Lisa, A. Urry
Publisher: PEARSON
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Textbook Question
Chapter 32, Problem 8TYU
SYNTHESIZE YOUR KNOWLEDGE
This organism is an animal. What tan you infer about its body structure and lifestyle (that might not be obvious from its appearance)? This animal has a protostome developmental pattern and a trochophore larva. Identify the major clades that this animal belongs to. Explain your selcction, and describe when these clades originated and how they are related to one another.
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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?
Construct a character matrix by making observations on the different features of the following group of invertebrates. On the table, write 1 if the character is present in (or exhibited by) the group; 0 if absent (or is not exhibited).
Group of organisms
Segmentation
Coelom
Jointed appendages
Cephalization
Tissues
Radial symmetry
Porifera
Arthropods
Cnidarians
Nematodes
Annelids
Input the characters in the pre-made cladogramthat is provided for you. Also, write in the empty boxes the correct group of organisms to show relationships. One character and one group of organism is done for you.
Select all that apply: Which characteristics could be used to identify an unknown organism as an animal
rather than a fungus or a plant?
multicellular
developmental stage called a blastula
heterotrophic
ingestion of food for internal digestion
alternation of generations during life cycle
presence of Hox genes in genome
have cell walls
Chapter 32 Solutions
Campbell Biology: Australian And New Zealand Edition + Mastering Biology With Etext
Ch. 32.1 - Summarize the main stages of animal development....Ch. 32.1 - WHAT IF? What animal characteristics would be...Ch. 32.2 - Put the following milestones in animal evolution...Ch. 32.2 - VISUAL SKILLS Explain what is represented by the...Ch. 32.2 - MAKE CONNECTIONS Evaluate whether the origin of...Ch. 32.3 - Distinguish the terms grade and clade.Ch. 32.3 - Compare three aspects of the early development of...Ch. 32.3 - Prob. 3CCCh. 32.4 - Prob. 1CCCh. 32.4 - WHAT IF? Suppose ctenophores are basal metazoans...
Ch. 32.4 - Prob. 3CCCh. 32 - Prob. 32.1CRCh. 32 - What caused ihe Cambrian exploston? Describe...Ch. 32 - Describe how body plans provide useful Information...Ch. 32 - Prob. 32.4CRCh. 32 - Prob. 1TYUCh. 32 - The distinction between sponges and other animal...Ch. 32 - Prob. 3TYUCh. 32 - Prob. 4TYUCh. 32 - EVOLUTION CONNECTION A professor begins a lecture...Ch. 32 - SCIENTIFIC INQUIRY INTERPRET THE DATA Redraw the...Ch. 32 - WRITE ABOUT A THEME: INTERACTIONS Animal life...Ch. 32 - SYNTHESIZE YOUR KNOWLEDGE This organism is an...
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- Create 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. Use Lesson 12 (Chapter 32) and Lesson 13 (Chapter 33) as a guide. 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 3) and 4) ONLY. Thank you.arrow_forwardSuppose you came across a novel organism you suspected belonged to one of the following animal phyla: Porifera, Cnidaria, or Ctenophora. Which of the following characteristics would NOT be helpful in placing the organism into the correct phylum? 1) how it acquires food 2) whether adults are sessile or mobile 3) whether the organism has a coelom 4) the number of tissue layers it has 5) the type of body symmetry it hasarrow_forwardGive at least (3) body structures that are salient among these groups of animals: Protozoans Poriferan Cnidariansarrow_forward
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