4. Aquiferous system
Asconoid (A): Leucosolenia
Syconoid (B-C): Scypha
Leucosnoid (D): Demospongiae
A B Leucosolenia
ScyphaScypha
C D
Spongin fiber
http://www2.fiu.edu/~goldberg/coralreefs/NewPorifera.htm
Spicule types (SEM)
Asexual reproduction
Fragments & Gemmules
http://biology.about.com/od/genetics/ss/A
sexual-sexual
Reproduction_3.htm
Sexual reproduction
Hermaphroditic
Class Calcarea
Class Demospongiae
Class Sclerospongiae
Class Hexactinellida
5. Phylum Cnidaria
(jellyfish hydras anemonaes corals)(jellyfish, hydras, anemonaes, corals)
marinemarine
radial symmetry
Diploblastic metazoa: endoderm & ectoderm
Carnivores > tentacle Carnivores --- > tentacle
Gastrovascular Cavity -- > 犖∇賢犖∇賢犖迦見犖迦牽
Nerve cells --- > net
犖犖項犖犖迦: polyp & medusa
Asexaul polyploid & Sexual medusoid
犖÷元犢犖犖ム献犖犖巌犖犖犖犖劇犖 Cnidocyte 犖÷犖犖ム献犖犢犖犖犖犖 Cnidocyte
犖犖園硯犖犖犖 Planula
4 Classes
1. Class Hydrozoa (hydroids)
2 Cl A th ( l d )2. Class Anthozoa (corals and anemones)
3. Class Scyphozoa (true jellyfish)
4. Class Cubomedusa
犖ム険犖犖犖犖萎犖犖犢犖犖ム鹸犖犢犖ム鍵犢犖÷犖項犖
Cnidotocyst
犖犖犖犖犖園犖犖園硯犢犖ム鍵犖犖園犖犖迦見犖迦牽
犢 犖 N t t ( 犢 犖 ) 犖 l 犖朽 犖朽 犖 犖犖迦権犢犖犖 Nematocyst (犢犖犖÷犖) 犖犖犖萎犖犖犖犖о権 capsule 犖犖÷犖迦犖 犢犖ム鍵
犖÷元犢犖犖犖犖迦権犖犖巌県犖犖犖犖∇弦
4 classes
1. Class Hydrozoa: Hydra, Obelia
犖 犢 犖犖項犖犖迦犖犖犖犢犖犖 犖犖о犢犖犖 polyp
犖犖迦犢犖犖犖犖犖犖о権犖÷元犢犖∇厳犢犖犖犖迦 vellum
C 犖朽 Cnidocyte 犖÷元犢犖 epidermis
mesoglea 犢犖犖犖犖園犖犖犖迦犢
Hydra
Gonothyrea Obelia
6. 犖о犖犖犖犖朽硯犖巌犖犖犖 Hydra
Sexual cycle
Female gonad
Asexual cycle
male gonad
2. Class Anthozoa: (sea anemones, corals, sea pen)
- 犖犖項犖犖迦犢犖犖 polyp 犢犖÷検犖 medusa - Gastrovascular cavity 犢犖犖犢犖犖犖犖犖犢犖 p yp y 犢
- 犖犖迦犖犖犖巌犖犖犖迦犢犖犖犖犖犖迦犢犖犢犖
Sea fan
http://exonity files wordpress com/2011/04/anthozoans jpg
Brain Coral
http://www.dscc.edu/custom/bwilliams/Biology2/bio2animal.htm
http://exonity.files.wordpress.com/2011/04/anthozoans.jpg
犖犖迦牽犖犖劇犖犖園犖犖伍犖犖 Anthozoa
Longitudinal fissionLongitudinal fission
Sexual life cycle
Sexual life cycle
7. 3. Class Scyphozoa: (jellies)
犢犖÷検犖 ll 犢犖÷検 vellum
犖犖項犖犖迦犖犖ム険犖犢犖犖 medusa
C id t 犖÷元犢犖 id i & t d i Cnidocyte 犖÷犖 epidermis & gastrodermis
mesoglea 犢犖犖犖犖園犖犖犖犖
Statocyst 犖犖о権犖犖犖犖犖園硯 Statocyst 犖犖о権犖犖犖犖犖
犢犖犖Aurelia sp.
htt // i t d / h t / i l /J ll Fi h1 jhttp://arnica.csustan.edu/photos/animals/Jelly_Fish1.jpg
犖о犖犖犖犖朽硯犖巌犖犖犖 Aurelia sp.
4. Class Cubozoa: (box jellyfish/sea wasp)
∇牽犖項犖犖迦犖犖ム険犖犢犖犖 medusa
Colorless
∇犖÷検犖 velum
∇見犖犖о犖∇厳犢犖犖犖犖犖犖迦犖÷幻犖÷犖園犖犖犖朽犖犖項犖犖迦犖犖ム顕犖∇犖犖犢犖犖÷元犖 (pedalium)
http://www.curiosidadeanimal.com/peixes_
marinhos_box.shtml
http://billericky.hubpages.com/hub/Poisonous-spiders-and-
snakes-in-Ausralia
Phylum Platyhelminthes
platy + helminth = flat worm
bilateral symmetry
犢 犢 犢 犢犖犖劇賢犢犖∇厳犖 3 犖犖園
acoelomate
犖 犖巌 犖 犖 d t ll 犢 犖 犖 犖犖項犖犖迦犖∇顕犖 犢犖犖 犖犖犖犖犖巌検 犖犖巌硯犢犖犖朽権犖 dorsoventrally 犢犖÷検犖朽犖犖犖ム賢犖
犖犖迦犢犖犖巌犖犖迦見犖迦牽犢犖÷肩犖÷犖項牽犖 犖犖迦犢犖犖巌犖犖迦見犖迦牽犢犖犖犢犖犖犖犖犖犖犢犖犖 2-3 犢犖犖
犖劇 犖 犖 犖 犖汲 犖犖ム顕犖÷犖犖劇賢犢犖ム鍵犖犖萎犖犖犖犖萎肩犖迦犢犖犖犖巌犖犖 犖÷元 cephalization
犖犖萎犖犖犖園犖犖迦権 : protonephridia
犢 犖 犖 犢 犖 犖朽 犢犖犖犖о犖о犖犖犖迦牽犢犖ム犢犖犖ム元犖∇犢犖犖
hermaphrodite, self fertilization, cross fertilization, regeneration
犖 犖汲 犖犖迦犖犖犖巌犖÷元 hook
犢犖犖 犖犖ム顕犖犖迦犖犖朽権 犖犖∇顕犖犖巌犖犢犖 (flukes) 犖犖∇顕犖犖巌犖園硯犖犖劇 (tapeworms)