Nervous System of Annelids and Arthropods

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Across
  1. 2. The nerve cords of annelids and arthropods are segmented, containing pairs of ___ in each segment.
  2. 5. Arthropods have a ___ nerve cord.
  3. 7. Annelids have a closed ___ system, while arthropods have an open ___ system.
  4. 10. Annelids have both ___ and subpharyngeal ganglia.
  5. 12. The fact that arthropods have distinct heads while annelids do not is an example of the trend towards ___.
  6. 14. The segmentation present in annelids and arthropods allows for more complex ___ plans.
Down
  1. 1. Annelids and arthropods are ___.
  2. 3. Annelids have a similar structure to ___.
  3. 4. The nervous system of arthropods consists of a nerve cord and a dorsal ___.
  4. 6. Annelids are also know as ___ worms.
  5. 7. Both annelids and arthropods have a ___ nervous system.
  6. 8. Arthropods have a ___ system, while annelids do not.
  7. 9. Both annelids and arthropods have ___ bundles between the ganglia in each segment of their nerve cord.
  8. 11. Annelids and arthropods reproduce ___.
  9. 13. The ganglia in the nerve cord of arthropods is ___.