Animal Phyla (Grade 11 NSC Matric Life Sciences): Flashcards
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No. of major animal phyla studied
No. of major animal phyla studied
Six
Animals lacking a backbone
Animals lacking a backbone
Invertebrates
Stinging cells in cnidarians
Stinging cells in cnidarians
Nematocysts
Simplest multicellular animals
Simplest multicellular animals
Sponges (Phylum Porifera)
Type of symmetry in cnidarians
Type of symmetry in cnidarians
Radial symmetry
First phylum with bilateral symmetry & cephalisation
First phylum with bilateral symmetry & cephalisation
Phylum Platyhelminthes (flatworms)
Process where arthropods shed exoskeleton
Process where arthropods shed exoskeleton
Ecdysis (moulting)
Most successful animal group on Earth
Most successful animal group on Earth
Arthropods
True body cavity filled with fluid
True body cavity filled with fluid
Coelom
Type of circulatory system in vertebrates
Type of circulatory system in vertebrates
Closed circulatory system