Campbell Biology (11th Edition)
11th Edition
ISBN: 9780134093413
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Textbook Question
Chapter 32, Problem 2TYU
The distinction between sponges and other animal phyla is based mainly on the absence versus the presence of
(A) a body cavity.
(B) a complete digestive tract.
(C) mesoderm.
(D) tissues.
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Students have asked these similar questions
Phylum Arthropoda:
1. Comment on the size (number of species) within this phylum.
2.
General Body Plan: (circle the appropriate answer)
a) Simple or complex,
b) Do they have true tissues? Yes or No
c) asymmetry, radial symmetry, bilateral symmetry
d) Do they have organs? Yes or No
e) What type of appendages?
f) What type of skeleton?
3. Describe molting.
Phylum Echinodermata:
1. Briefly describe the general body plan of these animals by stating:
a) the type of symmetry they have,
b) the type of "skeleton" they have,
c) the type of vascular system they have.
2. State classes, the common name(s) of animals, and the general characteristics differentiating each class.
a)
b)
c)
d)
A previously unknown animal is being studied so that it can be classified. It is an invertebrate, triploblastic, dorsoventrally flattened, acoelomate, and has flame cells. Which phylum would you place it in?
A)Arthropoda.
B)Porifera
C)Mollusca.
D)Platyhelminthes.
E)Cnidaria.
Chapter 32 Solutions
Campbell Biology (11th Edition)
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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- Which phylum is characterized by animals thathave a segmented body?(A) Cnidaria(B) Platyhelminthes(C) Arthropoda(D) Molluscaarrow_forwardWhich class of Cnidarian is described below: This class includes the corals and the sea anemones. Individual animals are cylindrical in shape and are attached directly to a substrate in the polyp body form. Question 18 options: a) Class Hydrozoa b) Class Scyphozoa c) Class Cubozoa d) Class Anthozoaarrow_forwardWhich of the following features do sponges lack that some other animals have? (a) segmented body plan (b) symmetrical body plan (c) backbone (d) all of the abovearrow_forward
- Distinguish between (a) radial and bilateral symmetry; (b) blastula andgastrula; (c) direct and indirect development; (d) complete andincomplete digestive tracts; (e) coelom and pseudocoelom.arrow_forwardWhile all members of the phyla we’re considering this week are in the bilateria (have bilateral symmetry and three tissue layers) – they also differ drastically. From your perspective: I) which groups considered in this unit are the most similar and what connects them? II) Which groups are most distinct and what separates them? **The phyla group mentioned in this question is circled in redarrow_forwardFor each of the following pairs of terms, provide one similarity and one difference: a) Planula and trochophore [2] b) Epidermis and neodermis [2] c) Mandibles and chelicerae [2] d) Dimorphism and metamorphosis [2] e) Spicules and dermal ossicles [2] f) Coelom and pseudocoelom [2]arrow_forward
- Parasitic alveolates that form spores at some stage in their life belong to which group? (a) actinopods (b) ciliates (c) coccolithophorids (d) apicomplexans (e) dinoflagellatesarrow_forwardYou take a field trip to tide pools in Puget Sound and encounter all sorts of Animals. Please use the following descriptions of those adult Animals to determine which of the 9 major phyla each belongs. Has radial symmetry and two tissue layers: ["cnidaria", "Mollusca", "Arthropoda", "Annelida", "Platyhelminthes", "Porifera"] Has 6 jointed appendages and a chitinous exoskeleton: ["cnidaria", "Mollusca", "Arthropoda", "Annelida", "Platyhelminthes", "Porifera"] Has bilateral symmetry with a digestive sac and no coelom: ["cnidaria", "Mollusca", "Arthropoda", "Nematoda", "Platyhelminthes", "Porifera"] Has bilateral symmetry, an open circulatory system, a digestive tube, gills and a radula: ["cnidaria", "Mollusca", "Arthropoda", "Nematoda", "Platyhelminthes", "Porifera"] Has no true tissues and no body symmetry: ["cnidaria", "Mollusca", "Arthropoda", "Nematoda", "Platyhelminthes", "Porifera"]arrow_forwardWhat are the internal and external structures together with its function of Aplacophora, Monoplacophora, Polyplacophora, Bivalvia, Gastropoda, Cephalopoda, Scaphopoda?arrow_forward
- How then do sponges, cnidarians,ctenophores, and placozoans function, andwhat are the consequences of their anatomical organization for diversity and ecology?arrow_forwardClass Gastropoda and Class Bivalvia independently evolved modifications to their body plan that allowed them to invade sandy and muddy habitats, burying their bodies under the surface and accessing the surface via siphons. For an example organism in each Class, (1) draw a diagram showing the morphological modifications and (2) write a description of how this organism had evolved from the hypothetical ancestral mollusk (HAM) body plan.arrow_forwardCreate lists of animal phyla that (a) are cephalized, (b) have an incomplete digestive tract, (c) have segmented bodies, and (d) have a coelom.arrow_forward
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