Across
- 5. An animal that has a backbone or spinal column.
- 8. very eager or insatiable appetite for something
- 9. To waver between different opinions
- 10. The tissue in plants that transports water
Down
- 1. To move in a smooth, wavelike motion or pattern.
- 2. A person who is highly skilled or accomplished
- 3. Extremely unhappy, miserable, or unfortunate.
- 4. provide immunity against a specific disease.
- 6. The scientific study of animals
- 7. a medium to large boat