BIOLOGY
5th Edition
ISBN: 9781264104680
Author: BROOKER
Publisher: MCG
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Chapter 34, Problem 6TY
Summary Introduction
Introduction: Ecdysozoa are those animals that possess a chitinous exoskeleton and are able to perform the process of ecdysis. Ecdysis is a process of shedding of shells.
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A ciliated feeding structure in the larval stage is a characteristic of aa. trochozoan.b. parazoan.c. lophophoran.d. deuterostome.
The larval stage of a cnidarian is known as a
a. medusa.
b. planula.
c. polyp.
d. cnidocyte.
Which of the following does NOT ALWAYS describe ecdysozoans?
a. They exhibit bilateral symmetry.
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c. They are protostomes.
d. None among the other choices
e. They are pseudocoelomates.
f. They are triploblastic.
g. They exhibit cephalization.
Chapter 34 Solutions
BIOLOGY
Ch. 34.2 - Prob. 1CCCh. 34.3 - Prob. 1CCCh. 34.3 - Cnidaria: Jellyfish and Other Radially Symmetric...Ch. 34.4 - Prob. 1CCCh. 34.4 - Prob. 2CCCh. 34.4 - Prob. 3CCCh. 34.4 - What was the hypothesis tested by Fiorito and...Ch. 34.4 - Prob. 2EQCh. 34.4 - Prob. 3EQCh. 34.4 - What are some of the advantages of segmentation?
Ch. 34.5 - Prob. 1CCCh. 34.5 - Prob. 1CSCh. 34.5 - Prob. 2CCCh. 34.5 - Prob. 3CCCh. 34.5 - Prob. 2CSCh. 34.5 - Prob. 3CSCh. 34.6 - Prob. 1CCCh. 34 - Choanocytes are a. a group of protists that are...Ch. 34 - Prob. 2TYCh. 34 - Prob. 3TYCh. 34 - Prob. 4TYCh. 34 - Prob. 5TYCh. 34 - Prob. 6TYCh. 34 - Prob. 7TYCh. 34 - Prob. 8TYCh. 34 - Prob. 9TYCh. 34 - Prob. 10TYCh. 34 - Prob. 1CQCh. 34 - Prob. 2CQCh. 34 - Core Concept: Structure and Function Explain the...Ch. 34 - Prob. 1COQCh. 34 - Prob. 2COQ
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- An unidentified animal is noted to possess the following characteristics: triploblastic eucoelomate body a cuticle that is shed via ecdysis To which of the following phyla does this organism belong? Group of answer choices A. Echinodermata B. Annelida C. Arthropoda D. Nematodaarrow_forwardWhich of the following descriptions or features does/do NOT apply to Phylum Nematoda? a. Chitinous cuticle b. Sensory papillae c. Pseudocoelomate d. None among the other choices e. All of the other choices (except "None among....") f. Ecdysozoan g. Hydrostatic skeletonarrow_forwardWhich of the following statements is NOT true regarding protostome diversity? A. Of the 30 animal phyla, more than 2/3 (22 phyla) are protostomes. B. There are more mollusk species than Priapula. C. There are more lophotrochozoans than ecdysozoans. D. A major feature distinguishing different developmental characteristics.arrow_forward
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- Which of the following would be found in a sea urchin (phylum Echinodermata)? A. A dorsal hollow nerve cord B. An endoskeleton C. Schizocoelus coelom formation D. A trochophore larva E. All of the abovearrow_forwardUnlike other coelomate animal phyla, mollusks lacka. segmentation.b. cephalization.c. three primary tissue layers.d. some type of body cavity.arrow_forwardChoose which is FALSE among the following statements about the Phylum Annelida. A. Annelids have thin cuticle that is NOT made of chitin. B. Earthworms are segmented worms, either externally or internally. C. Leeches are segmented. D. Annelids are lophotrochozoans because of their presence of lophophores. E. Annelids are triploblastic and eucoelomates. Choose which is FALSE among the following statements about the different classes of the annelids. * A. Oligochaetes have few setae, while polychaetes have many. B. Oligochaetes are mainly terrestrial, while polychaetes are mainly aquatic. C. Oligochaetes have uniramous parapodia, while polychaetes have biramous. D. Both the Oligochaetes and Hirudineans have clitellium. E. Oligochaetes and Hirudineans are hermaphrodites, while Polychaetes have separate sexes.arrow_forward
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