Unit 4: BIO111 SRU

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Lophotrochozoan

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Biology

28 Terms

1

Lophotrochozoan

species with a long thin tubelike body that lacks limbs

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2

Rotifera

tiny pseudocoelomate suspension feeders named for the cluster of cilia at anterior end called a corona that waves in rotating patterns.

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3

Animal Lineages

Sponge; Comb Jellies; Corals and jellyfish; protostomes; deuterostomes

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4

Protostomes

live in virtually every aquatic and terrestrial habitat; can be detritivores

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5

Adaptations protostomes have while transitioning to land

  1. exchange gasses; 2. avoid drying out; 3. hold their own bodies under their own weight

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6

3 Key Features of Arthropod Body Plan

Segmented body; Exoskeleton; Jointed Appendages

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7

Sponges

Porifera

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8

Comb Jellies

Ctenophora

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9

Corals and Jelly Fish

Cnidaria

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10

Trochophore

larva

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11

4 major lineages of arthropod taxonomy

Myriapods; Crustaceans; Insects; Chelicerata

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12

Protostome

embryonic development of the mouth before the anus

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13

Protostome subgroups

Lophotrochozoa; Ecdysozoa

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14

Deuterostome

embryonic development of the anus before the mouth

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15

Echinodermata

sea stars and urchins

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16

Hemichordate

acorn worms

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17

Chordata

Cephalochordate; Urochordates and Vertebrates

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18

Echinoderm

marine animal with spikes or spines

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19

Water Vascular system

a series of branching fluid-filled tubes and chambers

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20

Tube feet

elongated fluid filled jointed appendages that help organisms move

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21

Cephalochordate

small torpedo shaped animals who suspension feed

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22

Urochordates

organisms with sac-like bodies that have an external coat of polysaccharide

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23

Pharyngeal Pouches

present in embryos develop into gills in aquatic species but not terrestrial species

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24

Vertebrates

have dorsal hollow nerve cord that is elaborated into spinal cord

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25

Spinal cord/nerve cord

bundle of nerve cells that run from brain to body’s posterior

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26

Notochord

develops in all vertebrate embryos

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27

Spinal cord and cranium

make up the central nervous system

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28

Cartilage

strong flexible tissue consisting of scattered cells in gel-like-matrix of made of polysaccharides and protein fibers.

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