BIS2C_Lect26_Ward_Development___Sponges_ppt

Symbiotic relationships with other organisms are

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Unformatted text preview: sms are common. Symbiotic relationships with other organisms are common. Mutualism: cyanobacteria or algae living in sponge mesohyl, exchanging nutrients Commensalism: other marine organisms inhabiting sponges, using them for shelter (facilitated by porous nature). Mutualism: cyanobacteria or algae living in sponge mesohyl, exchanging nutrients Commensalism: other marine organisms inhabiting sponges, using them for shelter (facilitated by porous nature). Classic case: shrimp (Spongicola) that is an obligate inhabitant of a glass sponge (Euplectella). Why obligate? Symbiotic relations with sponges - Mutualism - sponge + autotroph (cyanobacteria/algae) - photosynthetic products for nutrients - Commensalism - marine organisms inhabiting sponges for shelter 9 Obligate inhabitant - obliged to stay in the sponge Sponge features: biology Sponge features: biology Why is the shrimp (Spongicola) an obligate inhabitant of a glass sponge (Euplectella)? Why is the shrimp (Spongicola) an obligate inhabitant of a glass sponge (Euplecte...
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