Summary
Samenvatting Overzicht/vergelijkingen diversiteit van dieren
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Dit document is een vergelijkend overzicht van de voornaamste stelsels en kenmerken van de verschillende taxa
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Morfologie BewegingPorifera Symmetrie: asymmetrisch of bilateraal symmetrisch Volwassen: sessiel
Multicellulair, zonder weefsels of organen Larven: zwemmen met flagellen
Pinacoderm (epidermis) + Choanoderm (gastrodermis)
Pinacocyten + porocyten. Choanocyten
Mesohyl -> vertering, gameten, skelet, transport
Myocyten + amoebocyten
Arachae- + sclero- + collen- + spongocyten
Spicula -> endoskelet (in mesohyl)
Kalk- (extracell. prod) + glasachtige (intracell. Prod)
Holtes/openingen
Ostium + osculum + spongocoel + prosopyle + apopyle
Structuurtypes : aconoïde, synconoïde,leuconoïde
Aconoïde sponzen
Buis/vaas
Choano enkel in aflijning spongocoel
1 osculum
Pinacoderm met porocyten
Waterstroom: buiten -> porocyt -> mesohyl -> atrium -> osculum
Synconoïde sponzen
Geplooid pinacoderm en choanoderm
Choano enkel in radiale kanalen
Waterstroom: buiten -> porocyt -> mesohyl -> prosopyle -> choanok ->
apopyle -> atrium -> osculum
Leuconoïde sponzen
choano in kleine geflagelleerde kamers -> voeren water
aan vanuit instroomkamer en voeren af via uitstroomk.
Geen spongocoel
Meerdere oscula
,
,Voeding en vertering Zenuwstelsel Excretie en osmoregulatie
Filtervoeding x Bij zoetwatersoorten door contractiele vacuolen
,
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