| Answer | Crossword Clue |
|---|---|
| amnia | similar membrane of insects and other invertebrates |
| amnions | similar membrane of insects and other invertebrates |
| amnion | similar membrane of insects and other invertebrates |
| serosas | a. the chorion b. similar membrane in insects and other lower invertebrates |
| serosa | a. the chorion b. similar membrane in insects and other lower invertebrates |
| serosae | a. the chorion b. similar membrane in insects and other lower invertebrates |
