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Invertebrate > 1 > Flashcards

1 Flashcards

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
Q

Gastropoda

A

Coiled asymmetric shell
Visceral torsion
Flattened muscular foot

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26
Q

Visceral torsion

A

180 anti clockwise turning of visceral mass hill anus repo excretory behind head u shaped tract

27
Q

Bivalvia

A 
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
Q

Cephalopod

A 
Shell abscent 
Prehensile tentacles 
Radula + beak 
Siphon for jet propulsion
Brain * eyes 
Closed system
29
Q

Scaphopoda

A

Tubular tapered shell
Anterior tentacles
Benthic

30
Q

Echinoderm features

A

Exoskeleton made of calcareous ossicles
Pentamerous radial symmetry
Larvae bilateral
Water vascular system

31
Q

Ossicle describe

A

Exoskel covered in epidermis
Embedded within are ossicles
Ossicle porous filled with stroma

32
Q

Pedicellariae

A

Pincer live structures

33
Q

Starfish water vascular order

A 
Madreporite 
Stone cannal 
Ring canal
Radial canal
 lateral canal
Ampullae 
Tube foot
34
Q

Tiedemabs body

A

Colemocytes

35
Q

Lilian vesicles

A

Regulate fluid pr sure

36
Q

Locomotion via tube feet

A 
Ampullae =fluid resevoir
Protractor muscle compress 
Foot extends 
Valve isolates 
Postural muscles alter direction 
Sucker substrate 
Retractor muscles contract 
Pull along
37
Q

Brittle stars locomotion

A

Row 2ndary limbs

38
Q

Crinoidea

A

Feather stars walk mouth up on five arms

39
Q

Holothurians

A

Substrate burrow locomotor via podia on ventra

40
Q

Arthropoda

A 
Bilateral 
Chitin exo
Malt
Pairs of legs body segment 
Head thorax abdomen
41
Q

Chelicerata segments

A

1 prosoma head + thorax 5 legs

2 opisthosa no legs
No antennae chelicera

42
Q

Merostomata

A

Sea scorbialnd

43
Q

Arachnida

A

8 legs anterior body segment

44
Q

Crustacea

A 
3 segment 
Bitamous appendages 
3 as mouth pets 
2 pairs of antennae 
Pleopods on abdomen
45
Q

Branchiopoda

A

Gills on appendages

46
Q

Cephalocorida

A

Elongate body large head no eyelashes 2 pairs of antenna

47
Q

Macillopoda o

A 
Short bodies 
Reduced abdomens 
5 cephalon segments
6 thoracic segments 
4 abdominal segment + telson
48
Q

Ostracado

A

2 valves

49
Q

Malacostaca

A

Carapace eyes pigments

50
Q

Insecta

A

3 segments 4 wings 3 legs

51
Q

Trilobite 3 parts

A

Cephalon
Segmented thorax
Pugidi

52
Q

Lophophorate

A

Aquatic seasickness
Feed through lophophore
No distinct head
I shaped git with ditinct mouth + Anus

53
Q

Bryozoa

A

Form colonies individuals are housed in cistid

0 or u shaped lophophore
Hollow tentacles protruded / retracted

54
Q

Phoronida

A

Crown shaped lophophore
Solitaryerect tubes of Chitin
I shaped git
Spiral cleavage

55
Q

Branchiopoda

A

Dorsal ventral hinged valves
Benthic
I shaped got
Radial cleavage

56
Q

Echinoderms

Respiration

A

Branchia papulae
Cilia mantiain pp
Also tube feet

57
Q

Lamelli branchia

A

Paired ctendia 4 sheets in one cavity

Counter current

58
Q

Cephalopod molluscs

A

Feathery gill ventilation by muscular contractions.heart

59
Q

Pulmonary molluscs

A

No gills mantle vascular pneumostome

Ventilation arching/ flattening of mantel cavity

60
Q

Arthropoda

A

Ventilate fill bailer

61
Q

Class one

A

E f r

62
Q

Class two

A

Erf

63
Q

Class three

A

Ref

64
Q

Anelid respiaratiry order

A

Dvv p vlv
Plc pp
Dlv do

Invertebrate (1 decks)

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