Across
- 2. lobsters, crabs, are examples of
- 4. the process when an arthropod sheds its external skeleton
- 5. mammals produce milk from their___
- 7. a plant with tube-like cells
- 9. basic unit of life
- 10. the largest group of seedless vascular plants/
- 12. the tallest living thing on earth
- 14. cone-bearing plant
- 15. there are 700,000 species of this organism
- 16. the protective shell of a beginning plant
Down
- 1. an animal without a backbone
- 3. plants that breakdown matter
- 6. a plant without tube-like cells
- 8. spiders and scorpions are_____
- 11. snakes and lizards are kinds of____
- 13. breakdown or decay matter