⑤ ⑧⑧ ⑨ ⑤B. MWMB⑨⑥⑧⑨ i⑤ ⑤⑤⑧⑧⑨①④$⑧⑤④⑧⑨
← -•
AYSYMMCTVY radial • bilateral
EE symmetry symmetry
→ mobile
→ sessile
→ cepnalisation
→
generally I
got opening
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primary germ layer .
secondary germ layer
ectoderm
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oaermtorms : epithelium
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µ , , ,m
µ, , , ,mµ,m , , µ ,, ,, ,,µ , , µ,
mesoderm
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HEB ⑧⑤ 9808 ⑧8⑤⑥④⑥⑧⑤ two
.
⑧ ⑧⑨⑤⑤⑧⑨⑤$⑨⑤⑤⑧⑨⑥⑤ ⑧⑤ ⑥⑧ ⑤ ⑧ MAD
d- coelomate
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