BIOLOGY:CONCEPTS+INV>CUSTOM<
BIOLOGY:CONCEPTS+INV>CUSTOM<
18th Edition
ISBN: 9781307311655
Author: Hoefnagels
Publisher: MCG/CREATE
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Chapter 21.5, Problem 4MC
Summary Introduction

To discuss:

The disadvantages of shell present on the body of mollusk.

Concept introduction:

Mollusks are the group of organism which is characterized by bilateral symmetry and three germ layers. Mollusks have soft and unsegmented bodies. Most species of mollusk acquirea calcareous exoskeleton which support and protects the soft body parts of the animal. Snail, sea slug, oyster and octopus are some examples of mollusks.

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Chapter 21 Solutions

BIOLOGY:CONCEPTS+INV>CUSTOM<

Ch. 21.2 - Prob. 4MCCh. 21.3 - Prob. 1MCCh. 21.3 - Prob. 2MCCh. 21.3 - Prob. 3MCCh. 21.3 - Prob. 4MCCh. 21.4 - Prob. 1MCCh. 21.4 - Prob. 2MCCh. 21.4 - Prob. 3MCCh. 21.5 - Prob. 1MCCh. 21.5 - Prob. 2MCCh. 21.5 - Prob. 3MCCh. 21.5 - Prob. 4MCCh. 21.6 - What defining feature arose in the annelid lineage...Ch. 21.6 - Prob. 2MCCh. 21.6 - Prob. 3MCCh. 21.6 - Prob. 4MCCh. 21.6 - Prob. 5MCCh. 21.7 - Prob. 1MCCh. 21.7 - Prob. 2MCCh. 21.7 - Prob. 3MCCh. 21.7 - Prob. 4MCCh. 21.7 - Prob. 5MCCh. 21.8 - Prob. 1MCCh. 21.8 - Prob. 2MCCh. 21.8 - Prob. 3MCCh. 21.8 - Prob. 4MCCh. 21.8 - What are the advantages and disadvantages of an...Ch. 21.8 - Prob. 6MCCh. 21.8 - Prob. 7MCCh. 21.8 - Prob. 8MCCh. 21.9 - Prob. 1MCCh. 21.9 - Prob. 2MCCh. 21.9 - What are some examples of echinoderms?Ch. 21.9 - Prob. 4MCCh. 21.10 - What are four key defining characteristics of...Ch. 21.10 - Prob. 2MCCh. 21.10 - Prob. 3MCCh. 21.10 - Prob. 4MCCh. 21.10 - Differentiate between an ectotherm and an...Ch. 21.10 - How does the number of heart chambers affect the...Ch. 21.11 - Compare and contrast the features of tunicates and...Ch. 21.11 - Prob. 2MCCh. 21.11 - Prob. 3MCCh. 21.12 - Prob. 1MCCh. 21.12 - Prob. 2MCCh. 21.13 - Prob. 1MCCh. 21.13 - Prob. 2MCCh. 21.13 - Prob. 3MCCh. 21.14 - Prob. 1MCCh. 21.14 - Prob. 2MCCh. 21.14 - What features distinguish the three orders of...Ch. 21.15 - Prob. 1MCCh. 21.15 - Prob. 2MCCh. 21.15 - Prob. 3MCCh. 21.15 - Prob. 4MCCh. 21.15 - Prob. 5MCCh. 21.15 - Prob. 6MCCh. 21.16 - Prob. 1MCCh. 21.16 - Prob. 2MCCh. 21.16 - Prob. 3MCCh. 21.17 - Prob. 1MCCh. 21.17 - Prob. 2MCCh. 21 - Following gastrulation, the cells that have folded...Ch. 21 - Prob. 2MCQCh. 21 - How is the body structure of an annelid different...Ch. 21 - Prob. 4MCQCh. 21 - Prob. 5MCQCh. 21 - Prob. 6MCQCh. 21 - Prob. 7MCQCh. 21 - Prob. 8MCQCh. 21 - Prob. 9MCQCh. 21 - Since a tunicate is considered to be a chordate,...Ch. 21 - Prob. 11MCQCh. 21 - Prob. 12MCQCh. 21 - How do reptiles and mammals differ from...Ch. 21 - Prob. 14MCQCh. 21 - Since a whale is a mammal, it must a. have scales....Ch. 21 - Compare the nine major animal phyla in the order...Ch. 21 - Prob. 2WIOCh. 21 - Prob. 3WIOCh. 21 - Distinguish between (a) radial and bilateral...Ch. 21 - Prob. 5WIOCh. 21 - Like sponges, plants tire sessile organisms, but...Ch. 21 - Prob. 7WIOCh. 21 - Prob. 8WIOCh. 21 - Compare and contrast the roundworm body structure...Ch. 21 - Make a chart showing the characteristics of each...Ch. 21 - List the features that determine the echinoderms...Ch. 21 - Prob. 12WIOCh. 21 - How do tunicates and lancelets differ from fishes...Ch. 21 - Draw from memory a phylogenetic tree that traces...Ch. 21 - Prob. 15WIOCh. 21 - List five adaptations that enable (a) fishes to...Ch. 21 - Prob. 17WIOCh. 21 - Prob. 18WIOCh. 21 - Summarize the evidence for the idea that birds are...Ch. 21 - Prob. 20WIOCh. 21 - Prob. 21WIOCh. 21 - Prob. 22WIOCh. 21 - How are fishes, amphibians, nonavian reptiles,...Ch. 21 - Give three examples of interactions between...Ch. 21 - Prob. 25WIOCh. 21 - Prob. 26WIOCh. 21 - Invasive animal species are disrupting ecosystems...Ch. 21 - Prob. 1PITCh. 21 - Prob. 2PITCh. 21 - 3. Draw a concept map that summarizes the...
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