316 INDEXHermaphrodite Boxes 6.1, 7.1; see alsoReproductionmotile animals 60, 65, 69–72, 82,96–8, 115, 132–3sessile animals 28, 170, 214, 215,219, 240Hermit crabs 37, Fig. 13.6gHeteronemertines 77, 84, Fig. 7.2bHexactinellida 26, 27, Fig. 3.2aHexapoda see InsectsHi<strong>ru</strong>dinea 105, 117; see also LeechesHolothuroidea 231–2, Fig. 17.7a,bHomeobox see GenesHomology 11–14, 263, 280–2Hormones 195, 201, 234moulting 158–60, Fig. 12.4pheromones 133Hoplonemertines 77, 86, Figs. 7.2c–7.6Hox genes see GenesHydra 34–6, 257, 267, Figs. 4.1, 19.6a,b,cHydractinia 41, 267Hydrozoa (hydroids) 32, 35, 41, 43,Figs. 4.1, 4.6a, 4.7; see also Corals,Hydra, SiphonophoraHymeniacidon 27Hypodermis 91, 96Imago (adj. imaginal) 201, 206Insects (Hexapoda) 153, 186, 192–212,Figs. 15.1–15.6; see also Drosophiladevelopment 248, 253orders (not separately indexed)202–8phylogeny 270–1, 277–8, Fig. 20.4Interstitial cells 33Interstitial habitat 56, 89Introvert 58, 59Ionic regulation Box 7.1Isometric Box 5.1Isopoda 173–6; see also WoodliceIso<strong>to</strong>nic muscle Box 5.1Iso<strong>to</strong>nic solutions Box 7.1Jellyfish 32, 35, 38, Figs. 4.5, 4.6,Boxes 9.3, 11.1Kinorhyncha 58, 272, Fig. 5.3bKrill 171, Fig. 13.6dLabial palps 135, 137Labium 189, 192Lamarck, J.-B. 5Land habitat 173–6, 181, 191, 193–5,Box 7.1Larvacea 240; see also OikopleuraLarvae 178–9, 248, 256, Box 6.1,Box 17.1deuteros<strong>to</strong>me 225, 232–4, 239–43,245, 250, Figs. 17.8, 18.3a, 18.4c,19.2dinsect 201–8, Figs. 15.4, 15.5, 15.6nauplius 169, 178–9, Figs. 13.2a,13.7aplanula 39, 41, 46, 268, Figs. 4.6, 4.7trochophore 70, 74, 83, 86, 115,121, 137, 219, 249–50,Figs. 9.5, 10.3avarious 26, 27, 95, 179, 214, 215,Fig. 13.7b,c,dLattices 51–4, 91, 94, Fig. 5.1d,eLeeches (Hi<strong>ru</strong>dinea) 73, 101, 107, 108,Fig. 9.2e,fLeucosolenia 25, 29, Figs. 3.1c, 3.2bLife cycle see Larvae, ReproductionLimbs see AppendagesLimpet 8, 129, Fig. 1.3c,dLimulus 181, 182–4, Figs. 14.1a,b, 14.2Lineus 77, 83, 84Lingula 15, 216, 270Lit<strong>to</strong>rina Fig. 10.4cLiver fluke see FasciolaLobopoda 167, 271Lobster 168, Box 7.1Locomotion; see also Muscleciliary 25, 54, 78; see also Larvaein Cnidaria 37–9jet propulsion 48, 139–40, 144, 240by limbs 153, 161, 190–1by muscular waves 48, 65, 91–4,106–7, 122–3, Figs. 5.1b, 10.2by peristalsis 48, 106, 107, Fig. 5.1aby proboscis 78–80by tube feet 222–3, 225–32in worms 47–8, 54, 101, Fig. 5.1a,b,cLocusts (Orthoptera) 204, Fig. 15.5bLophophores 213–19, 242,Figs. 16.1a–d, 16.2aLophotrochozoa 271, Fig. 20.2Loricifera 58, 272, Fig. 5.3aLox4 (gene) 269, 271Lox5 (gene) 269, 271Lungs 110, 130, Boxes 7.1, 9.2lung book (book lung) 186, Fig. 14.4Lymnaea 247, 249, 255, Fig. 19.1Malacobdella 78, 84, Fig. 7.2Malacostraca 170–1, 179, Figs. 13.1,13.6Malpighian tubules see Excre<strong>to</strong>ryorgansMandibles see AppendagesMantle 120, 123, 139, 144Mantle cavity 122, 128–30, 140,Figs. 10.1, 11.4Maxillae see AppendagesMayflies (Ephemeroptera) 204,Fig. 15.4dMedusa (pl. medusae) 32–46, Fig. 4.5Meiosis Fig. 1.2; see also Cell divisionMendel, G. 2–6, 210, 211Mendelian ratio Fig. 1.1Meros<strong>to</strong>mata 181; see also LimulusMesentery 34, 41, Fig. 4.4Mesocoel see CoelomMesoderm Box 5.2derivatives of 101, 254development of 68, 74, 85–6, 102,118, 218, 219, 250, Fig. 19.1cpresence of 48, 65, 78Mesoglea 32, 33, 38, 41, Figs. 4.1c, 4.2cMesohyl 23, 28, Fig. 3.1aMesozoa 55, 272, Fig. 5.2aMetabolic rate 144, 215, Box 9.2Metamerism see SegmentationMetamorphosis 157–60, 178–9, 201,234, 235, 239, Box 17.1Metazoa 17, 28, 30–1, 266, Fig. 20.2Metridium 37Microvilli 26, Fig. 3.1aMillipedes (Diplopoda) 190–1,Fig. 14.5cMi<strong>to</strong>sis Fig. 1.2; see also Cell divisionMolecular clock 21Molecular taxonomy see TaxonomyMollusca 120–52, 270, Figs. 10.1a,10.2–10.6, 11.1–11.5, Boxes 11.1,16.1Monophyletic group 13, 73, 153, 180,266Monoplacophora 126, 152; see alsoNeopilinaMorgan, T. H. 3, 210–12Morphogen 256, 257Moulting 95, 154–60, 193, Figs. 12.3,12.4Mucus 70, 85, 130, 132, 137; see alsoFeedingMulticellular animals see MetazoaMuscle Box 5.1; see also Locomotion,Mesodermadduc<strong>to</strong>rs 135, 139asynchronous 199
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cambridge university pressCambridge
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viCONTENTS4.5 What is the ecologica
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viiiCONTENTS13.5 What are the speci
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Boxes5.1 Muscle page 495.2 Protosto
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xivPREFACEfirst two, are more gener
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Illustration acknowledgementsAll th
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Chapter1The process of evolution:na
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WHAT IS THE CELLULAR BASIS OF HERED
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WHAT IS THE ORIGIN OF GENETIC VARIA
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WHAT IN GENERAL DOES EVOLUTION PROD
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WHAT IN GENERAL DOES EVOLUTION PROD
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Chapter 2The pattern of evolution:m
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HOW CAN WE USE MORPHOLOGY TO TRACE
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HOW CAN WE USE FOSSILS TO INVESTIGA
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CAN THE FOSSIL RECORD DATE THE EARL
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WHICH MOLECULES ARE USED?19Using pa
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HOW RELIABLE IS MOLECULAR TAXONOMY?
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Chapter 3PoriferaSponges are by far
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WHAT DIFFERENT KINDS OF SPONGE ARE
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HOW DO SPONGES MAKE A LIVING?27dige
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WHAT CHANGES HAVE EVOLVED DURING SP
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HOW HAVE SPONGES BECOME SO SUCCESSF
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WHY DO WE REGARD CNIDARIA AS SIMPLE
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HOW DO CNIDARIA MAKE A LIVING?35Fig
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HOW DO CNIDARIA MAKE A LIVING?37Nem
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HOW DO CNIDARIA MAKE A LIVING?39of
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HOW HAS SO MUCH DIVERSITY BEEN POSS
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WHATISTHEECOLOGICALIMPORTANCEOFCORA
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HOW ARE CNIDARIA RELATED TO EACH OT
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Chapter 5On being a wormAny soft-bo
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MUSCLE49Box 5.1MuscleMuscles contra
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MUSCLE51divided into coelomates, ps
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MUSCLE53Fig. 5.1 (contd.) (c) Thene
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WHAT WORM PHYLA ARE KNOWN?55Fig. 5.
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WHAT WORM PHYLA ARE KNOWN?57Fig. 5.
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WHAT WORM PHYLA ARE KNOWN?59conspic
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PROTOSTOMES AND DEUTEROSTOMES61Clea
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DO CTENOPHORA BELONG AMONG THE WORM
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Chapter 6Platyhelminthes andAcoelom
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WHATARE THE ACOELOMORPHA?67Parasiti
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WHAT IS SPECIALISED ABOUT MODERN PL
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PARASITISM71Box 6.1ParasitismParasi
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HOW ARE PLATYHELMINTHS RELATED TO O
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Chapter 7NemerteaNemertea (also cal
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WHATARE THE PRINCIPAL GROUPS OF NEM
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HOW DO NEMERTINES DIFFER FROM PLATY
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HOW DO NEMERTINES DIFFER FROM PLATY
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HOW DO NEMERTINES DIFFER FROM PLATY
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HOW DO NEMERTINES DEVELOP?85Fig. 7.
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SEA, FRESH WATER AND LAND87Box 7.1S
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SEA, FRESH WATER AND LAND892. Activ
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HOW ARE THESE CHARACTERS RELATED TO
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HOW ARE THESE CHARACTERS RELATED TO
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WHYARE NEMATODES USEFUL FOR DEVELOP
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WHY HAS CAENORHABDITIS ELEGANS BEEN
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HOW ARE NEMATODES RELATED TO OTHER
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Chapter 9AnnelidaMost of the 15 000
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EXCRETION103Excretory productsOther
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WHATARE THE ADVANTAGES OF THE COELO
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WHATARE THE ADVANTAGES OF THE COELO
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RESPIRATION109The overall equation
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TRANSPORT SYSTEMS111lobes with a la
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TRANSPORT SYSTEMS113Oxygen dissocia
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HOW DO ANNELIDS REPRODUCE AND FEED?
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HOW ARE ANNELIDS RELATED TO EACH OT
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HOW ARE ANNELIDS RELATED TO OTHER P
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HOW CAN SUCH AN ANIMAL FUNCTION?121
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WHAT IS THE SHELL AND HOW MAY IT BE
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WHAT ARE THE ACULIFERA?125calcareou
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HOW IS THE MOLLUSCAN BODY PLAN MODI
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HOW IS THE MOLLUSCAN BODY PLAN MODI
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HOW MAYGASTROPODS FEED?131Fig.10.6
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CONCLUSION133especially in the sea.
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Chapter11Mollusca: Bivalvia andCeph
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HOW DO BIVALVES FEED?137The activit
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HOW IS THE MOLLUSCAN BODY PLAN MODI
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WHAT CEPHALOPODS ARE KNOWN?141Fig.1
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BUOYANCY143thereismore food.Buoyanc
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HOW HAVE SOME CEPHALOPODS BECOME SO
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NERVES AND BRAINS147knowledge about
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NERVES AND BRAINS149(e) The relatio
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WHAT HAS LIMITED THE EVOLUTION OF C
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Chapter12Arthropoda: generalArthrop
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WHATARE THE KEY FEATURES OF ARTHROP
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WHATARE THE KEY FEATURES OF ARTHROP
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WHATARE THE KEY FEATURES OF ARTHROP
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WHAT MAKES POSSIBLE THE GREATACTIVI
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WHAT MAKES POSSIBLE THE GREATACTIVI
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WHATARE THE CLOSEST RELATIONS OF AR
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WHATARE THE CLOSEST RELATIONS OF AR
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WHAT ARE THE MAIN KINDS OF CRUSTACE
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HOW HAVE CRUSTACEANS COLONISED FRES
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HOW HAVE CRUSTACEANS COLONISED FRES
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HOW HAVE CRUSTACEANS COLONISED FRES
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WHATARE THE SPECIAL FEATURES OF PAR
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WHAT IS THE ROLE OF CRUSTACEAN LARV
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Chapter14Chelicerata and MyriapodaC
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WHY IS LIMULUS OF SPECIAL INTEREST?
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WHATARE ARACHNIDS?18514.4 What are
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HOW DID ARACHNIDS COLONISE THE LAND
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WHATARE MYRIAPODS AND HOW DOTHEY MO
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HOW WELL ARE MYRIAPODS ADAPTED TO L
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WHYARE INSECTS SUCH SUCCESSFUL LAND
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HOW ARE INSECTS ABLE TO FLY?195mid
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HOW ARE INSECTS ABLE TO FLY?197Fig.
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HOW ARE INSECTS ABLE TO FLY?19915.3
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WHAT IS DISTINCTIVE ABOUT INSECT LI
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WHATARE THE MAIN ORDERS OF INSECTS?
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WHATARE THE MAIN ORDERS OF INSECTS?
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WHATARE THE MAIN ORDERS OF INSECTS?
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HOW COULD SOCIAL BEHAVIOUR HAVE EVO
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WHY HAS STUDY OF THE FRUIT FLY DROS
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Chapter16Animals with lophophoresSe
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WHICH ANIMALS HAVE LOPHOPHORES?215o
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ARE ANIMALS WITH LOPHOPHORES PROTOS
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SHOULD THERE BE A GROUP CALLED ‘L
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HOW ANIMALS FEED221Intake of plant
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WHAT IS UNIQUE ABOUT ECHINODERMS?22
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HOW DO DIFFERENT ECHINODERMS FEED A
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HOW DO DIFFERENT ECHINODERMS FEED A
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HOW DO DIFFERENT ECHINODERMS FEED A
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HOW DO DIFFERENT ECHINODERMS FEED A
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DO THE LARVAE ILLUMINATE ECHINODERM
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LARVAE235Why have a larva?Early hat
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WHAT ARE THE CHORDATE CHARACTERS?23
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WHICH ARE THE INVERTEBRATE CHORDATE
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WHAT ARE THE HEMICHORDATES?241the v
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WHAT DO ENTEROPNEUSTS AND PTEROBRAN
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DEEP-SEA INVERTEBRATES245the lophop
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Chapter19DevelopmentDevelopment of
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WHAT IS THE PATTERN OF CLEAVAGE IN
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WHAT IS THE PATTERN OF CLEAVAGE IN
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HOW DO INVERTEBRATES GASTRULATE?253
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HOW DO CELLS ACQUIRE POSITIONAL INF
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HOW DO GENES REGULATE DEVELOPMENT?2
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WHATARE HOX GENES AND HOW DO THEY W
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CONCLUSION261conserved, but their e
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Chapter 20Invertebrate evolutionary
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WHAT DO GENES TELL US ABOUT RELATIO
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HOW DO GENES RELATE THE PROTOSTOME
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HOW DO GENES RELATE THE PROTOSTOME
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WHERE DO THE SMALLER PROTOSTOME PHY
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HOW DO GENES RELATE THE DEUTEROSTOM
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HOW DO GENES RELATE THE DEUTEROSTOM
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WHAT DO MOLECULES TELLUS ABOUT RELA
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WHAT DO MOLECULES TELLUS ABOUT RELA
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CAN WE NOW DEFINE HOMOLOGY?281eye d
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Further readingThe second edition o
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FURTHER READING285G. E. Budd & S. J
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FURTHER READING287Annelida (Chapter
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FURTHER READING289C. T. S. Little &
- Page 620: FURTHER READING291M. J. Telford, A.
- Page 624: FURTHER READING293E. M. De Robertis
- Page 628: GLOSSARY295Ammonia NH 3 (ion NH þ
- Page 632: GLOSSARY297Cleavage The earliest di
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- Page 648: GLOSSARY305Nephridium (pl. nephridi
- Page 652: GLOSSARY307Phenetic taxonomy (numer
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- Page 660: GLOSSARY311Viviparity Developing yo
- Page 666: 314 INDEXCarcinus see CrabsCatenuli
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