Porifera Flashcards
(24 cards)
The large opening at the top of the sponge where water exits
Spicules
A symbiotic relationship in which both individuals benefit
Mutualism
Groups of archaeocytes that are produced in times of unfavourable environmental conditions
Gemmules
Within the cell
Intracellular
Reproduction requiring only one parent
Asexual
The process of removing waste products from the body
Excretion
Sponges
Porifera
Body design, lacking symmetry
Asymmetrical
A method of asexual reproduction
Budding
The process of exchanging gases in the body
Respiration
A network of flexible fibres in soft sponges
Spongin
A symbiotic relationship in which only one individual benefits and with no effect on the other
Commensalism
Fertilization of the egg inside the body
Internal fertilization
Fertilization of the egg inside the body
Internal fertilization
Organisms that sift food particles from the water
Filterfeeder
A fertilized egg
Zygote
Specialized cells that make the sponges
skeleton
Archaeocyte
The process of moving fluids through the body
Circulation
Mouth first anus second
Protostome
Spike shaped structure of calcium carbonate or silica
Spicule
Cells with flagella for creating a current of water
Choanocytes
Movement of molecules through a medium from areas of high concentration to areas of low concentration
Diffusion
The opening atop the sponge in which water leaves the sponge
Osculum
An immature developmental stage of an organism
Larva
