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Ivertebrates: (Molluscs (Clasification (Cephalopods, Bivalves, Gastropods)…
Ivertebrates:
Molluscs
Aquatic
bilateral symetry
soft body
Head, visceral mass and muscular foot
Hermaphrodite and oviparus.
Clasification
Cephalopods
Bivalves
Gastropods
Worms
Anelids
ringed worms
cilindrical body
metameres
nematodes
Parasites
free-living
cylindrical body
Platyhelminthes
Flat worms
Free-living
hermafrodites
Sponges porifera:
Filtration
Asymetrical
Tiny spores
Anthropods
Exoskeleton
Head torax abdomen
Echinoderms:
oviaparous
dermal skeleton
five equal sections
sexual reproduction
Clasification: Asteroidea Echinoidea Ophioroidea CrinoideaHolothuridea.
Cnidarians
Jellyfish: Umbrella shape
Polyps: sac-like
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We define as an invertebrate an organisim that have not backbone
