Across
- 3. large segment in middle of worm that secretes a cocoon for eggs
- 6. anterior opening on organism for food intake
- 7. relay messages between body and brain
- 9. used for mechanical digestion,grinding food into smaller pieces
- 10. an exterior opening of microscopic organism through which undigested food waste,water,or gas are expelled for the body
Down
- 1. Back or top,darker in color
- 2. Secretes enzymes for chemical digestion, also necessary for the absorption of nutrients into blood
- 4. storage sac for food
- 5. ventral bristles for tractions
- 8. pumps blood