FINAL WORLD CUP 2010

1. FINAL WORLD CUP 2010 VS WhaT is the score???

2. What is the kind of animal can predict the winner??? Paul The Octopus

6. Phylum Mollusca

7. CHARACTERISTICS • Molluscamolluscus means soft, • are group of soft-body animals. • Second largest phylum in the animal kingdom • A milimeter till 18 meter length. • Occur in a wide variety of environments

8. CHARACTERISTIC • General Body Plan • Head • Ventrally located muscular foot • Dorsally located visceral mass • Covered by a fleshy outgrowth of the body wall called a mantle/pallium • Radula a tongue-like structure bearing transvers rows of chitinous teeth (except for bivalves) • Complete digestive tract, mouth, esophagus, stomach, intestine, and anus. • Gonads in visceral mass

9. System Function • Skeletal- Mantle may secretes a shell. Use hydrostatic pressure for ventral muscular foot. • Muscles -Ventral muscular foot and other muscles present. • Digestive- complete complex with salivary glands, digestive gland and Rasping tongue (Radula). • Circulatory - Open Circulatory System except for Cephalopoda. Dorsal heart, usually in a pericardial cavity. • Respiratory - Ctenidia (gills) in mantle cavity, respiratory pigment.

10. Excretory- by nephridia act as kidney usually connecting to the pericardial cavity, • Nervous - Nerve ring with various pairs of ganglia—two pairs of nerve cords, one innervating the foot, the other the visceral mass (modified ventral ladder-like system) • Integumentary - Mantle • Endocrine - nervous systems produces hormones. • Reproductive - varied- monoecious, or dioecious. Larva in marine = trochophore and veliger, in freshwater clam is glochidium.

11. CLASSIFICATION • Class Gastropoda • Class Bivalvia • Class Cephalopoda

12. ClassGastropoda • Gastropodagaster=belly, podos=food • Members usually sluggish and sedentary • Mostly with asymmetrical bodies • Move couse muscular contraction, that satrt from posterior till anterior • Univalves, Shell usually spiral, distinct head, scraping radula. • Visceral mass typically turned 180° counterclockwise = torsion.

14. General Stucture of Gastropoda

15. RADULA • Toothed chitinous ribbon in the mouth of most mollusks • used for cutting and chewing food before it enters the esophagus • It is present in all molluscs except bivalves

16. Pila (freshwater kuhol) Class Gastropoda

17. Haliotis (abalone); Class Gastropoda

18. Turbo (turban snailClassGastropoda

19. Cypraea (cowries) Class Gastropoda

20. Spanish shawl Nudibranchs Sea slug

21. Class Bivalvia / Pelecypoda • Bivalvia bi= two, valvia=valve • Hatchet/axe shaped foot in burrowers • Head lacks eyes, radula and tentacles • Shell of two lateral valves, with dorsal hinge. • Mantle of flattened right and left lobes. Posterior margin commonly forming siphons • Labial palps beside mouth • Has ligament at dorsal end, act as hinge • Bivalve shell composed of periostracum, prismatic, nacreus layer.

23. Tridacna (giant clam) Class Bivalvia

24. S. princeps Spondylus (scallop) Class Bivalvia

25. C. swifti C. islandicus Chlamys (scallop) Class Bivalvia

26. Perna (mussel) Class Bivalvia P. veridis

27. A. suborbiculata Anodonta (freshwater clam) Class Bivalvia A. anatina

29. Class Cephalopoda • Cephalopodachepalo= head, podos=food • Free-swimming • Fast moving • Active carnivores • Elongated body • Skeleton may be external, internal or absent • Foot developed into prehensile arms or tentacles • Large head with conspicuous eyes • Ventral foot modified into tentacles(are arms) with suckers

30. Class Cephalopoda • Well-defined head • Complex eyes • Brain in cartilaginous cranium • (+) radula • Beak-like jaws • Tentacles surrounding mouth

32. Loligo (squid) Class Cephalopoda

34. The Role of Mollusca for Human • A high-protein source • Jewelry such as pearl oyster • Decoration and buttons such as the shell of rock oyster • Terrazo materials such as the shell of Tricadacnasp