Biology 107

 

 

25. Know the different types of coelom formations (diagram).

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A. Ectoderm (outside layer of cells)

B. Mesoderm (middle layer of cells)

C. Gastrocoel (cavity where digestion take place)

D. Endoderm (inside layer of cells)

E. Blastocoel - (Cavity inside the mesoderm layer)

Figure 1 Pseudocoelomate (false cavity, not completely surronded by mesoderm)

Figure 2 Eucoelomate (true cavity completely surrounded by mesoderm)

Figure 3 Acoelomate (no cavity, inside completely filled with mesoderm)