BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Chapter 33, Problem 2U
Summary Introduction
Introduction:
Mollusks are an extremely diverse group that is located mostly in the ocean. Its body is complex and varied. In aquatic mollusks, the respiratory system is located within the mantle cavity. This respiratory structure or the gills are known as ctenidia.
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You find a worm and discover that it has no coelom, no nephridia and a mouth but no anus. What must be true of this animal?
A. it is a xenacoelomorph
B. it is s pseudocoelomate
C. it is hermaphroditic
D. it exhibits bilateral symmetry
E. A, C and D
The rhynchocoel is a ________. a. circulatory system b. fluid-filled cavity c. primitive excretory system d. proboscis
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 deuterostome
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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