BIOLOGY PACKAGE UPENN
17th Edition
ISBN: 9781269930512
Author: Reece
Publisher: Pearson Custom Publishing
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Chapter 33, Problem 33.3CR
is the lophotrochozoan clade united by unique morphological features shared by all of its members? Explain.
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What is the following specimen? Our invertebrate zoology professor told us there is a bryozoan on this rock? What group does it belong in? Genus?
In Figure 33.2, which two main clades branch from the mostrecent common ancestor of the eumetazoans?(A) Porifera and Cnidaria(B) Lophotrochozoa and Ecdysozoa(C) Cnidaria and Bilateria(D) Deuterostomia and Bilateria
What features make placozoans interesting from a phylogenetic perspective?
Chapter 33 Solutions
BIOLOGY PACKAGE UPENN
Ch. 33.1 - Prob. 1CCCh. 33.1 - Prob. 2CCCh. 33.2 - Compare and contrast the polyp and medusa forms of...Ch. 33.2 - Prob. 2CCCh. 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 - Prob. 6TYUCh. 33 - Evolution connection Interpret thf data Draw a...Ch. 33 - Prob. 8TYUCh. 33 - Prob. 9TYUCh. 33 - SYNTHESIZE YOUR KNOWLEDGE Colleclively, do these...
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- What structure differentiates Ectoprocts and Brachiopods from other Lophotrochozoa? Select one: 1-Complete digestive tract with two openings. 2- Fluid-filled coelom. 3- Triploblastic. 4- Suspension feeding via lophophore. 5- Trochophore larval stage. Please provide explanations in detail for the correct option as well as the incorrect options.arrow_forwardWhat is unique about the madreporite of sea cucumbers (class Holothuroidea)?arrow_forwardThe organism below belongs to Class_______________ . Anthozoa Cubozoa Scyphozoa Cnidariaarrow_forward
- What is the reason for saying that sponges are closely related to, and probably evolved from, several members of the Kingdom Protozoa?arrow_forwardTo which of the following groups would a species that does not molt, possesses a coelom, and has a trochophore larva belong? a. Ecdysozoa b. Parazoa c. Platyzoa d. Lophotrochozoaarrow_forwardWhat do the following subclasses have in common? Subclass: Elasmobranchii Subclass: Neopterygiiarrow_forward
- Which body form is present is present in image A? These organisms are members of which Phylum? What body form is present in image B?arrow_forwardConsider clades Bilateria, Lophotrochozoa, Metazoa, Chordata,Ecdysozoa, Eumetazoa, and Deuterostomia. List the clades to whichhumans belong in order from the most to the least inclusive clade.arrow_forwardWhat factors support the placement of phoronids and brachiopods as sister taxa?arrow_forward
- Which of the following does NOT ALWAYS describe ecdysozoans? a. They exhibit bilateral symmetry. b. All of the other choices (except "None among....") c. They are protostomes. d. None among the other choices e. They are pseudocoelomates. f. They are triploblastic. g. They exhibit cephalization.arrow_forwardGive at least (3) body structures that are salient among these groups of animals: Protozoans Poriferan Cnidariansarrow_forwardTabulate the similarities and differences of the two basal metazoan phyla. In what ways are Placozoa different (and similar) to Porifera? Provide at least 4 similarities and differences. Similarities Differencesarrow_forward
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