Across
- 3. A group of organisms that share similar characteristics
- 7. A cell without a nucleus
- 8. Values that do not change in an experiment
- 10. Different forms of a single gene
- 11. Living components of an ecosystem
- 13. Made of one single cell
- 15. An organism's role in a habitat
- 16. The air of a locality
- 18. Amount of water vapor in the air
- 19. A river or stream flowing into a larger river or lake
- 20. All of the populations of different species
- 21. When all organisms of a species die out
- 23. Algae bloom cycle
Down
- 1. Data that is described in numbers
- 2. An organism's inherited physical appearance
- 4. Non-living components of an ecosystem
- 5. How plants make food
- 6. Data that is described in words
- 8. Smallest unit of living matter
- 9. The highest level of classification
- 12. When water sticks to itself
- 14. A cell with a nucleus
- 17. The way cells duplicate themselves
- 22. The final phase of mitosis