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CHAPTER 44 INTRODUCTIONhlw_ch44_1.html50ad838ab11c0f4a67000000
DLAP questionshlw_ch44_1_dlap.xml50ad838ab11c0f4a67000000
44.1 A TREE OF LIFE FOR MORE THAN A MILLION ANIMAL SPECIES hlw_ch44_2.html50ad838ab11c0f4a67000000
DLAP questionshlw_ch44_2_dlap.xml50ad838ab11c0f4a67000000
44.2 THE SIMPLEST ANIMALS: SPONGES, CNIDARIANS, CTENOPHORES, AND PLACOZOANS hlw_ch44_3.html50ad838ab11c0f4a67000000
DLAP questionshlw_ch44_3_dlap.xml50ad838ab11c0f4a67000000
44.3 BILATERIAN ANIMALS hlw_ch44_4.html50ad838ab11c0f4a67000000
DLAP questionshlw_ch44_4_dlap.xml50ad838ab11c0f4a67000000
44.4 VERTEBRATE DIVERSITY hlw_ch44_5.html50ad838ab11c0f4a67000000
DLAP questionshlw_ch44_5_dlap.xml50ad838ab11c0f4a67000000
44.5 THE EVOLUTIONARY HISTORY OF ANIMALS hlw_ch44_6.html50ad838ab11c0f4a67000000
DLAP questionshlw_ch44_6_dlap.xml50ad838ab11c0f4a67000000
CHAPTER SUMMARYhlw_ch44_7.html50ad838ab11c0f4a67000000
DLAP questionshlw_ch44_7_dlap.xml50ad838ab11c0f4a67000000