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21 Cards in this Set
- Front
- Back
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1
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Multicellularity, radial cleavage, motile spermatozoa
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2
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Porifera - aquifers system (water canals, pores/holes for water flow), skeleton made of of spicules
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3
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Diploblastic, incomplete gut/GVC
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4
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Cnidaria = planular larva, gastrovascular cavity, cnidea
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5
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Bilateria - Bilateral symmetry, mesoderm derived from a single cells called mesentoblast
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6
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Spiralia - spiral cleavage (with a blastocoel), ladder like nervous system, ventral nerve cord
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7
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Platyhelminthes - not listed because it's probably not monophyletic.
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8
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Protosomes - coelom formed by schizocoely, complete digestive tract (blastocoel to mouth), trochophore larvae
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9
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Nemertea - eversible proboscis surrounded by rhynchocoel
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10
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Circumenteric nerve ring
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11
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Mollusca - mantle (shell glands from mantle and cavity), heart with chambers (2 atria, 1 ventricle), radula, ventral muscular feet
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12
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Teleoblastic segmentation (internal/external anatomical features are repeated in each segment)
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13
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Annelida - pre-segmental head (prostomium, peristomium) and parapodia (with chateau)
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14
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Ecdysozoa - molting of cuticle, secondary loss of trochophore larvae
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15
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Secondary loss of functional cilia and circular muscles
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16
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Onychophora - lobopods (unjointed appendages, filled with hemocoel, moved by hydrostatic pressure, controlled by extrinsic muscles, has claws with several pads) and slime/adhesive glands
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17
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Arthropoda - jointed appendages with intrinsic musculature, hard jointed exoskeleton, compound eyes
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18
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Nematoda - muscle arms, secondary loss of teleoblastic growth, collar shaped brain
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19
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Deutorostomes: complete digestive tract (blastopore to anus), coelom formed by enterocoely
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20
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Chordata: notochore, muscular post-anal tail, endostyle
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21
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Echinodermata: pentaradiate symmetry, water vascular system, mesodermal calcareous exoskeleton composed of ossicles with stereom
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