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triploblastic organisms :1-Acoleomates: with no cavity, and three cell layers.2-coleomates : with cavity, and surrounding with ( mesoderms )3-pseudocoleomates : with cavity filled with fluid, and lined with ( mesoderms )
Semicircular canals: are the fluid filled structures in the ear, which are involved in balance.
A blastocele is the fluid-filled cavity in the blastula.
A Bursa
This space is called coelom or body cavity .
Coelomates are animals that have body cavities with complete linings, filled with fluid, that maintain the juxtaposition of the internal organs. All vertebrates, and most bilateral animals are coelomates.
triploblastic organisms :1-Acoleomates: with no cavity, and three cell layers.2-coleomates : with cavity, and surrounding with ( mesoderms )3-pseudocoleomates : with cavity filled with fluid, and lined with ( mesoderms )
coelom is a fluid filled cavity within the body between the epidermis and gut it is derived from mesoderm there are three types of coelomic cavity they are coelomemates psuedo coelomates and acoelomates
A blastocoele is the fluid-filled cavity in the blastula.
Semicircular canals: are the fluid filled structures in the ear, which are involved in balance.
the bladder
The vacuole is a fluid-filled membrane-surrounded cavity located inside a cell
A vesicle is a fluid, or air, filled cavity.
A blastocoel is the fluid-filled cavity in the blastula.
A blastocele is the fluid-filled cavity in the blastula.
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Acoelomates have several disadvantages. They do not have any protective covering for their organs, no place for diffusion, and several other things. Psuedocoelomates have a fake coelom, or a coelom that was lost during evolution or mutation.