theme 4 Flashcards

1
Q

deuterostomia

A

hemichordata, echinodermata, chordata

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2
Q

lophotrochozoa

A

platyhelminthes, rotifera, brachiopoda, mollusca, annelida
either lophophore for feeding or trochophore larval stage

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3
Q

ecdysozoa

A

nematoda, arthropoda

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4
Q

poifera

A

sponges, lack true tissues, suspension feeders, internal fertilization with varied development

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5
Q

cnidaria

A

diploblastic, radial symmetry, may alternate polyp (sessile) or medusa (mobile) form, tentacles with cnidocytes to capture prey
incle: medosozoans, hydrozoans, scyphozoans, cubozoans, anthozoans

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6
Q

platyhelminthes

A

lophotrochozoan
- no cavity, incomplete sigestive, lacking respiratory, flatworms

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7
Q

lophophorates

A

lophotochozoan
- lophopore and coelom, brachiopods (bivalve mollusc-like) and ectoproca (coral, filter deeders)

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8
Q

mollusca

A

lophotrochozoans - throchozoa
- unsegmented soft body often with a shell, gills, radula for feeding,
- incl polyplacophora, gastropoda, bivalvia, cephalopoda

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9
Q

annelida

A

lophotrochozoans - trochozoa
- segmented worms with a hydrastatic skeleton, closed circulatoyry
incl errantia, sedentaria

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10
Q

ecdysozoans

A

nematoda and arthropoda. periodically moulted cuticle that sclerotizes to be the exoskeleton

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11
Q

nematoda

A

roundworms/threadworms
- no sigmentation
- digetive tract and hemocoel

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12
Q

arthropoda

A

segmented pody, jointed appendages, hard exoskeleton, cepahlization
trilobita, chelicerata, myriapoda, custacea, hexapoda

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13
Q

chielicerata

A

within arthropoda
-cephalothoraz with 6 pairs appendages (chelicera, pedipalps, uniramous legs legs), posterior abdomen
- incl arachnids

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14
Q

myriapoda

A

arthropoda
- less tagmatization,
- long trunk, tons of uniramous legs legs

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15
Q

crustacea

A

arthropoda
- three tagmata, biramous legs, antennae, lots of thoracic limbs, abdominal limbs multifunctional
- often biomineralized

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16
Q

hexapoda

A

arthropoda
- insects with wings
- head (antennae, mouthparts), thorax (3 pairs legs, wings), abdomen

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17
Q

apterygote/pterygote

A

insects without/with wings

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18
Q

echinoderm

A

radal summetry, ossicled endoskeleton, diffuse nervous system, broadcast sponners, madreporite for water vascular system

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19
Q

chordate traits

A

notochord, dorsal hollow nerve chord, pharyngeal slits, muscular post anal tail

20
Q

invertebrate chordates

A

cephlachordata (lancelets), urochordata (tunicates)

21
Q

vertenrate traits

A

vertenral column, elaborate braincase, 2+ hoz gene sets, neural crest eclls, dorsal/anal/tail find with fin rays, complex circulator sustem

22
Q

vertebrates

A

cyclostomes, gnathostomes, chondrichtyans,

23
Q

cyclostomes

A

jawless fish, often with reduced vertebrae

24
Q

gnathostomes

A

opposing jaws, mineralized skeletons (teeth), lateral appendages, 4 sets hox genes, enlarged forebrain (smell/vision), vibrations in water

25
mineralization and jaws
evolved simultanously, harder jaws is better for predation, endoskeeton ossified with calcium
26
chondrichtyans
cartilaginous endoskeleton, bony teeth
27
ostechthyans strains
lungs/lung derivatives, operculum (dermal plate on gills), manerverable fins
28
actinptergii
ray-finned dish, fins supported by rays attatched to bones, all fish now
29
sarcopterygii
lobe-finned, muscular fish, bone structure similar to tetrapods, also coelacnths, lungfish
30
tetrapods
two pairs study, three parted lumbs, digits, evolved for food on land
31
pre-terrestrial tetrapod evolution
vertebral column, ossification, lateral appendages, simple lungs, muscular/bony fins, internal nostrils
32
tetrapod adaptations
four limbs with feet/digits, distinct neck, fused pelvic girdle, absence of wills, ears
33
amphibia
early tetrapods, permable skin, ectothermic, - frogs, salamanders, caecilians
34
amniotes
amniotic egg (amnion, yolk sac, allantois, chorion), internal fertilization via intromittent organ, direct development, thicker skin diaspids (reptiles) synapsids (mammals) based on major openings near eye area
35
non avian reptiles
thick, kertinous scales, leathery eggs, ecctothermic, carbiniferous period, turtles and lepidosaurs (hemipenis)and archosaurs
36
birds
technically avian reptiles (archosaurs) from feathered theropods - wings with feathers, hollow bones, toothless beaks, reduced digestive system, organ reduction, high metabolic rate (endotermy)
37
atricial vs precocial
helpless featherless chicks vs independent (ish) chicks
38
mammals
have hair, produce milk, 3 middle ear bones, endothermic, dentary0squamosal jaw, specialized teeth, larger brain
39
monotremes
egg-laying mammals, no nipples, cloaca
40
marsupials
viviparuous, placenta, born prematurley and finish development in marsupium, cloaca
41
eutherians
complex placenta, no cloaca,
42
primates traites
grasping hands/feet, felxible limbs, forward eyes, large brain
43
human traits
obligate bipedals, large brains, reduced jaw and face, extended childhood
44
bipedalism adaptations
centralized skull, s-shaped spine, short/borad pelvis, leg lengthening, arched foot
45
main elements of animal evolution
multicellularity, truw tissues, gastrulation, triploblasticity (bilateral, complex organs), notochord, vertebrae, skeletal mineralization, jaws, lungs/derivatives, lobed fins, limbs with difits, amniotic egg, milk