BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Chapter 32, Problem 12U
Summary Introduction
Introduction:
Cnidarians are aquatic, radially symmetrical animals with the tissue level of body organization. These include jellyfishes, corals, hydras and sea anemones.
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The larval stage of a cnidarian is known as a
a. medusa.
b. planula.
c. polyp.
d. cnidocyte.
Distinguish between (a) radial and bilateral symmetry; (b) blastula andgastrula; (c) direct and indirect development; (d) complete andincomplete digestive tracts; (e) coelom and pseudocoelom.
What is a key characteristic of all arthropods? a. Six legs c. Hydrostatic skeleton b. Pseudocoelom d. Exoskeleton
Chapter 32 Solutions
BIOLOGY
Ch. 32.1 - Prob. 1LOCh. 32.2 - Prob. 1LOCh. 32.2 - Prob. 2LOCh. 32.2 - Prob. 3LOCh. 32.3 - Prob. 1LOCh. 32.3 - Prob. 2LOCh. 32.3 - Prob. 3LOCh. 32.4 - Prob. 1LOCh. 32.4 - Prob. 2LOCh. 32.5 - Prob. 1LO
Ch. 32.5 - Prob. 2LOCh. 32.5 - Prob. 3LOCh. 32.6 - Prob. 1LOCh. 32.6 - Prob. 2LOCh. 32 - Prob. 1IQCh. 32 - Prob. 1UCh. 32 - Animals are unique in the fact that they possess...Ch. 32 - In animal sexual reproduction the gametes are...Ch. 32 - The evolution of bilateral symmetry was a...Ch. 32 - A fluid-filled cavity that develops completely...Ch. 32 - Which of the following statements is NOT true...Ch. 32 - Which of the following characteristics is used to...Ch. 32 - With regard to classification of animals, the...Ch. 32 - The coelom a. is a synapomorphy for the clade...Ch. 32 - A coelomate organism may have which of the...Ch. 32 - Which of the following cell types of a sponge...Ch. 32 - Prob. 12UCh. 32 - Prob. 13UCh. 32 - The following diagram is of the blastopore sage of...Ch. 32 - Prob. 2ACh. 32 - Prob. 3ACh. 32 - Which of the following cell layers is not...Ch. 32 - Prob. 2S
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- Members of Chondrichthyes are thought to be descended from fishes that had ________. a. a cartilaginous skeleton b. a bony skeleton c. mucus glands d. slime glandsarrow_forwardA body cavity fully lined with tissue derived from mesoderm is called a______ . a. coelom c. complete digestive tract b. pseudocoelom d. gastrovascular cavityarrow_forwardWhich phylum is characterized by animals thathave a segmented body?(A) Cnidaria(B) Platyhelminthes(C) Arthropoda(D) Molluscaarrow_forward
- An animal whose blastopore develops into a mouth and the second opening into the anus can be called ______. Question 6 options: a) acoelomate b) bilaterally symmetrical c) a protostome d) a deuterostomearrow_forwardSelect all of the following that are true about cephalopods. A)They may be very large and can weigh over 1000 pounds. B)They are very intelligent and are capable of learning by observation. C)They are exclusively herbivorous. D)They have a closed circulatory system E)They lack a shell.arrow_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_forward
- Which of the ff. has a repugnatorial gland and coils into a ball when disturbed? A. Diplopod B. Symphyla C. Pauropoda D. Chilopodaarrow_forwardArthropods are the first phyla to possess: A)a brain B)an exoskeleton C)a complete digestive system D) an endoskeleton E) gillsarrow_forwardWhich of the following is an example of an animal that has true tissues, has a coelom, is triploblastic, and is a Deuterstome? Question 8 options: a) Echinodermata and Chordata b) Cnidaria c) Ctenophora d) Placozoaarrow_forward
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