1.27-1 Flatworms2. Acoelomate• Animal lacking a coelom, or body cavity 3. Coelom• Fluid-filled body cavity lined with mesoderm 4. Pharynx• Muscular tube at the end…
1.27-1 Flatworms2. Acoelomate• Animal lacking a coelom, or body cavity 3. Coelom• Fluid-filled body cavity lined with mesoderm 4. Pharynx• Muscular tube at the end…