BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Chapter 33, Problem 1A
Summary Introduction
Introduction:
The protostomes contain a group (clade) which is Lophotrophozoa. This group includes the Spiralia. Lophotrophozoa consists of the mollusks, segmented worms, lophophorates and several smaller phylums.
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Serial segmentation is a key characteristic of which of the following phyla?
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Chapter 33 Solutions
BIOLOGY
Ch. 33.1 - Prob. 1LOCh. 33.2 - Prob. 1LOCh. 33.2 - Prob. 2LOCh. 33.3 - Prob. 1LOCh. 33.4 - Prob. 1LOCh. 33.4 - Prob. 2LOCh. 33.4 - Prob. 3LOCh. 33.5 - Prob. 1LOCh. 33.6 - Prob. 1LOCh. 33.6 - Distinguish between the Errantia and Sedentaria.
Ch. 33.6 - Describe adaptations in leeches for feeding on the...Ch. 33.7 - Prob. 1LOCh. 33.7 - Prob. 2LOCh. 33.8 - Prob. 1LOCh. 33.8 - Prob. 2LOCh. 33.9 - Prob. 1LOCh. 33.9 - Prob. 2LOCh. 33.9 - Prob. 3LOCh. 33 - In the flatworm, flame cells are involved in what...Ch. 33 - Prob. 2UCh. 33 - Prob. 3UCh. 33 - Prob. 4UCh. 33 - Prob. 5UCh. 33 - Prob. 6UCh. 33 - Prob. 7UCh. 33 - Prob. 8UCh. 33 - Prob. 9UCh. 33 - Prob. 10UCh. 33 - Examples of decapods are a. centipedes and...Ch. 33 - Prob. 1ACh. 33 - Prob. 2ACh. 33 - Prob. 3ACh. 33 - Scientists studying the Chesapeake Bay have...Ch. 33 - Chitin is present in a number of invertebrates, as...Ch. 33 - Prob. 3SCh. 33 - Prob. 4S
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- If 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_forwardWhich characteristic(s) is/are not typical of protozoan cells?a. locomotor organelle c. sporeb. cyst d. trophozoitearrow_forwardWhich of the following groups includes all of the others? a. Protostomes c. Eumetazoans b. Echinoderms d. Ecdysozoansarrow_forward
- Distinguish the following phyla by their characteristics and features. Give a specific example for each. A. Poriferans B. Cnidarians C. Coelenteratesarrow_forwardWhich of the following classes of arthropod possess chelicerae? a. Chilopoda b. Crustacea c. Hexapoda d. Chelicerataarrow_forwardplease explain What is the primary characteristic of the Ecdysozoa (Nematoda + Arthopoda)? 1. They all have spiral cleavage. 2. They shed their exoskeletons and have the ability to molt. 3. None of the options in correct 4. They all have segmentation. 5. They all have tropchophore larvae.arrow_forward
- Taenia (Tapeworm), Fasciola (Liverfluke) are examples of which Phylum?A. Coelenterata B. PlatyhelminthesC. Annelida D. Arthropodaarrow_forwardWhile studying the embryonic development of an organism, you determine that the blastopore of the developing gastrula has developed into a mouth. Based on the Animalia tree discussed in class, which one of the following phyla could this NOT be? A. Chordata B. Mollusca C. Porifera D. Annelida E. Arthropodaarrow_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
- All of the following are true of Ctenophores except: A. Some species have long tentacles B. They catch food with stingers C. They move with tiny rows of cilia along their outsides D. They are diploblasticarrow_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_forwardA zoologist is investigating an unidentified marine animal specimen. They note that this creature has radial symmetry along its short axis, but has bilateral symmetry in a perpendicular axial plane. In addition, its peripheral surface appears to have several lines of cilia used for movement in the water. Which phylum is most likely to contain this specimen? Group of answer choices A. Annelida B. Mollusca C. Cnidaria D. Ctenophoraarrow_forward
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