Natural Selection
Across
- 2. a long piece of DNA that contains many genes.
- 5. a characteristic that all members of species have.
- 7. a type of molecule that genes and chromosomes are made of.
- 8. a related organism from a previous generation.
- 9. an instruction for making a protein molecule.
Down
- 1. the number of individuals with each trait in population.
- 2. an event or process that leads to a result or change.
- 3. a result or change that happens because of an event or process.
- 4. a way of hiding by looking the same as the background.
- 6. everything (living and nonliving) that surrounds an organism.