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1
Q

Ecdysozoans

A

Secrete exoskeleton

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2
Q

Lophophorates

A

Bryozoa
Branchiopod
Phoronid

Have lophophore

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3
Q

Protosome

A

Mouth first

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4
Q

Deuteronomy

A 
Echinoderms
Bilateral
Coelomaye 
Tripoblastic 
Anus first
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5
Q

Radial cleavage

A

Cleavage planes are parallel or perpendicular to polar axis
Blastosome arange radially around polar axis
Layers directly above and below

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6
Q

Spiral cleavage

A

Cleavage planes are oblique to polar axis
Arange radially atound polar axis
Layers offset to those above and below

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7
Q

Porifera cells

A 
Choanocytes
Sclerocytes 
Amoebocytes
Porocytes
Pinacocyte
Collenocyte
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8
Q

Choanocytes function

A

Generate water current filter food

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9
Q

Amoebocyte funcion

A

Delivers nutrients to cells

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10
Q

Porocytes

A

Control water flow through Ostia

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11
Q

Pinacocyte

A

Outer covering of sponge

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12
Q

Porifera development

A

Viviparous - release larvae
Spent arise from choanocytes form spermatic cyst
Released
Contact other sponge phagocytosis ameboid formed reaches egg larvae released

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13
Q

Cnidaria character

A 
Cnidocyte 
Formed in cnidoblast 
Tensile strength collagen 
Hole =operculum 
Cnidocil - trigger 
Exocytisis 
Somatic pressure
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14
Q

Annelida features 5

A 
True coelom 
Segmentation
Regional digestive tract
Closed circulatory system 
Well developed nervous
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15
Q

Polychaeta

A

Bristle worm

Numerous cheater 
Parapodia 
Tentacles
Chitineous jaw 
Lack clitellum
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16
Q

Oligochaete

A

Earthworm

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17
Q

Hirudinea

A

Leach

Less defined segmentation
Have clitellum
Lack setae and parapodia
Anyerior + posterior sucker

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18
Q

Anelida excretory system

A

Each segment metanephridium

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19
Q

Anelida nerve cord

A

Ventral

Intermuscular nerve give off branches to body wall

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20
Q

Mollusca features 8

A 
Bilateral symmetry (cephalisation) no segmentation 
Reduced coelom
Mantle 
Complete digestive tract 
Radula 
Trachophoric larvae 
Locomotion by muscular foot 
2 pits of nerve cords
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21
Q

Molluscs shell molecules

A

Caco3 chitin conchiolin

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22
Q

Mollusc shell Layers

A

Periostracum
Glandular furrow conchiolin pigment

Ostracum 2+3
Mantle edge hexoconal prisms of calciate

Hypostracum
Dorsal surface
Stacked sheets of conchiolin

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23
Q

Mollusc radula

A

Chiteneous ribbon
Moved back and forth over odontophoreraduak protractor and retractor
Odontophore over buccal cavity

Cone shells - toxoglossate radula

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24
Q

Polyplacophora

A

Doris ventral flat8 dorsal shell plates
Mantle lateral girdle
No eyes no antennae
M

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25
Gastropoda
Coiled asymmetric shell Visceral torsion Flattened muscular foot
26
Visceral torsion
180 anti clockwise turning of visceral mass hill anus repo excretory behind head u shaped tract
27
Bivalvia
``` Body+foot laterally compressed Two hinged valves Edge of mantle forms siphons No radula Filter feed ``` Lamelli branchia Paired Ctendia 4 sheets 1 cavity counter current
28
Cephalopod
``` Shell abscent Prehensile tentacles Radula + beak Siphon for jet propulsion Brain * eyes Closed system ```
29
Scaphopoda
Tubular tapered shell Anterior tentacles Benthic
30
Echinoderm features
Exoskeleton made of calcareous ossicles Pentamerous radial symmetry Larvae bilateral Water vascular system
31
Ossicle describe
Exoskel covered in epidermis Embedded within are ossicles Ossicle porous filled with stroma
32
Pedicellariae
Pincer live structures
33
Starfish water vascular order
``` Madreporite Stone cannal Ring canal Radial canal lateral canal Ampullae Tube foot ```
34
Tiedemabs body
Colemocytes
35
Lilian vesicles
Regulate fluid pr sure
36
Locomotion via tube feet
``` Ampullae =fluid resevoir Protractor muscle compress Foot extends Valve isolates Postural muscles alter direction Sucker substrate Retractor muscles contract Pull along ```
37
Brittle stars locomotion
Row 2ndary limbs
38
Crinoidea
Feather stars walk mouth up on five arms
39
Holothurians
Substrate burrow locomotor via podia on ventra
40
Arthropoda
``` Bilateral Chitin exo Malt Pairs of legs body segment Head thorax abdomen ```
41
Chelicerata segments
1 prosoma head + thorax 5 legs 2 opisthosa no legs No antennae chelicera
42
Merostomata
Sea scorbialnd
43
Arachnida
8 legs anterior body segment
44
Crustacea
``` 3 segment Bitamous appendages 3 as mouth pets 2 pairs of antennae Pleopods on abdomen ```
45
Branchiopoda
Gills on appendages
46
Cephalocorida
Elongate body large head no eyelashes 2 pairs of antenna
47
Macillopoda o
``` Short bodies Reduced abdomens 5 cephalon segments 6 thoracic segments 4 abdominal segment + telson ```
48
Ostracado
2 valves
49
Malacostaca
Carapace eyes pigments
50
Insecta
3 segments 4 wings 3 legs
51
Trilobite 3 parts
Cephalon Segmented thorax Pugidi
52
Lophophorate
Aquatic seasickness Feed through lophophore No distinct head I shaped git with ditinct mouth + Anus
53
Bryozoa
Form colonies individuals are housed in cistid 0 or u shaped lophophore Hollow tentacles protruded / retracted
54
Phoronida
Crown shaped lophophore Solitaryerect tubes of Chitin I shaped git Spiral cleavage
55
Branchiopoda
Dorsal ventral hinged valves Benthic I shaped got Radial cleavage
56
Echinoderms | Respiration
Branchia papulae Cilia mantiain pp Also tube feet
57
Lamelli branchia
Paired ctendia 4 sheets in one cavity | Counter current
58
Cephalopod molluscs
Feathery gill ventilation by muscular contractions.heart
59
Pulmonary molluscs
No gills mantle vascular pneumostome | Ventilation arching/ flattening of mantel cavity
60
Arthropoda
Ventilate fill bailer
61
Class one
E f r
62
Class two
Erf
63
Class three
Ref
64
Anelid respiaratiry order
Dvv p vlv Plc pp Dlv do

Invertebrate (1 decks)

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