| A | B |
|---|
| Meiosis | Cell division that takes place during sexual reproduction |
| Mitosis | Cell division that occurs as a natural part of growth |
| Chromosome | Threadlike structure containing genes |
| DNA | Genetic code that determines everything from intelligence to foot size |
| Phenotype | Observed characteristic |
| Genotype | Genetic makeup |
| Natural selection | Evolutionary process favoring species that can adapt to their environment |
| Dominant genes | Genes that carry stronger characteristics |
| Recessive genes | Genes that carry weaker characteristics |
| Sex cells | Sperm & eggs |
| Cells | The smallest unit of life |
| Galapagos turtles have longer necks because of this | Scarce vegetation |
