Periodic Table

2. a testable explanation
4. a length of DNA containing many genes
7. differences in the features of a species
9. passing on genetic information
11. change within a kind
13. a gene controlled feature that shows up when a dominant gene is absent
15. controls a feature of an organism
16. features that change gradually over a range of values
19. repeatedly choosing individuals to breed to produce offspring with certain features
20. passing on genetic information
21. repeatable measurable observation
23. the greater chance of passing on genes by the best adapted organisms

1. change from one kind into a different kind
3. investigations that are not fully repeatable or testable
5. random change in the DNA
6. an idea that may or may not be true
8. features with distinct forms
10. investigations that are repeatable and testable
12. a group of organisms that normally interbreed to produce fertile offspring
14. a gene controlled feature that always shows up if passed on
17. well tested explanation that includes facts, laws and hypotheses
18. a group of organisms that have a common ancestor
22. a pattern found in the natural world under certain conditions