Across
- 3. Numerus small waterfilled tubes used for locomotion
- 8. they feed on living animals without killing them
- 10. they feed on decaying plants and animals
- 12. animals that have backbones
Down
- 1. the shedding of the exoskeleton
- 2. the rise and fall of the surface on the sea and oceans
- 4. animals that strain food in from the water
- 5. to escape or get away
- 6. they feed on attached algae seaweed
- 7. microscopic plant an animals that drift in water
- 9. animals that get eaten by other animals
- 11. the physical place were something lives