Biology
5th Edition
ISBN: 9781260487947
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 defining feature of the Ecdysozoa is aa. segmented body.b. closed circulatory system.c. cuticle.d. complete gut.e. lophophore.
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.
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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- 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_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_forwardAn 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_forward
- Which 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_forwardIf chaetognaths belong to Lophotrochozoa, they would be more closely related to animals like earthworms which have a trochophore larva. If they belong to Ecdysozoa, they would... A. Be more closely related to animals that have a lophophore feeding structure B. Be more closely related to animals that are diploblastic C. Be more closely related to animals without symmetry D. Be more closely related to animals that shed their outer cuticle E. Both B and D are true O A O B O C O D O Earrow_forwardSerial segmentation is a key characteristic of which of the following phyla? a. Mollusca b. Brachiopoda c. Bryozoa d. Annelidaarrow_forward
- Distinguish the following phyla by their characteristics and features. Give a specific example for each. A. Poriferans B. Cnidarians C. Coelenteratesarrow_forwardA coelomate organism may have which of the following characteristics? a. Circulatory system b. Internal skeleton c. Larger size than a pseudocoelomate d. All of the choices are correct.arrow_forwardWhich of the following does not occur? a. radially symmetrical diploblast b. diploblastic eucoelomate c. protostomic coelomate d. bilaterally symmetrical deuterostomearrow_forward
- In arthropods, the tracheal system isa. a unique set of structures that function in ingestion and digestion offood.b. a series of branching tubes extending into the body that allow for gasexchange.c. a series of tubules that allow waste products in the blood to bereleased into the digestive tract.d. the series of ommatidia that form the compound eye.e. none of the above.arrow_forwardWhich 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_forward
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