Across
- 2. a product of photosynthesis
- 5. bacteria and fungi are examples of this
- 9. combination of metals
- 10. one of the 5 kingdoms
- 12. these have high resistances
- 13. the creator of the periodic table
Down
- 1. the populations of different organisms that live together in a habitat
- 3. binds to oxygen to carry in blood
- 4. a type of variation that can only fall into certain categories
- 6. group 7 elements
- 7. the second category in classification
- 8. cells where photosynthesis occurs
- 11. unicellular organism which can alter its shape