Across
- 3. Pulsatile organ developed in arthropods
- 5. Branched digestive system is observed
- 6. Circulatory system where blood floods tissues directly
- 7. Gastrovascular cavity observed in cnidarian
- 9. Body cavity in roundworms for material distribution
- 10. Unicellular organism showing protoplasmic movement
Down
- 1. Blind sac–like cavity used for digestion and transport
- 2. Oxygen is directly supplied to the tissues in....
- 4. Animals that use sea water for transportation
- 8. Circulatory system where blood flows through vessels