A. coelom |
1. Animals
possessing coelom |
B. coelomates |
2. body cavity |
C. pseudocoelom
|
3. not lined by mesoderm |
D. acoelomates |
4. lined by mesoderm |
E.
acoelom |
5. mesoderm as scattered pouches
between ectoderm & endoderm |
F.pseudocoelomates
|
6. animals with no body cavity
|
|
7. aschelminthes |
|
8. no body cavity |