Across
- 3. To arrange or sort objects according to their properties or characteristics
- 6. What plants that do not produce seeds reproduce with, it is one cell surrounded by a protective wall
- 9. One way scientists classify animals is whether or not they have a ____
- 10. Animals with backbones
- 11. A _____ is a group of similar organisms that can produce offspring
- 15. The other way plants are classified is how they _____
Down
- 1. Which animal classification are humans a part of
- 2. Animals can either give live birth or lay ___
- 4. Animals without backbones
- 5. Plants that have tubelike structures to transport nutrients
- 7. Plants that transport nutrients from cell to cell
- 8. How many groups of vertebrates are there
- 12. Plants with flowers or cones produce _____ to reproduce
- 13. One characteristic plants are classified by is how they _____ nutrients
- 14. The smallest two classification groups are species and _____