5 KINGDOM : ANIMALIA The Sponges
Kingdom Animalia(Metazoa) 1. Mesozoa 2. Parazoa 3. Eumetazoa
Mesozoa 1. Phylum Mesozoa
Mesozoa
Parazoa Parazoa Phylum Placozoa Phylum Porifera : Sponges
Trichoplax adhaerens
Sponges 1. Ostia 2. Oscula 3. Spicule 4. Spongin
Spicule
Spicule
Spongin
Types of Cells Mesohyl Pinacocyte Myocyte Choanocyte Archaeocyte / Sclerocyte / Spongocyte Collencyte / Lophocyte
Types of Cells
Choanocyte
Types of Canal Systems Asconoid Flagellated Spongocoels /Leucosolenia Syconoid Flagellated Canals/ Sycon Leuconoid Flagellated Chambers/Euspongia
Types of Canal Systems
Wall of sponge Sycon
Radial canals
Sponge Physiology Intracellular Digestion
Sponge Reproduction 1. External Bud 2. Internal Bud / Gemmule 3. Viviparous 4. Sperm / Oocyte 5. Oviparous Regeneration and Somatic Embryogenesis
Gemmule
Gemmule
Sponge Classification Class Calcarea / Sycon / Leucosolenia Class Hexactinellida / Euplectella Class Demospongiae / Spongilla Class Sclerospongiae
Development of Demosponges
Glass Sponge Skeleton
Euplectella
Venus Flower Basket Sponge
A building like Euplectella
Glass Sponge Spicules
Spongilla
Spongilla
Bath Sponge
Types of Spicules & Sponges