Across
- 4. he proposed that by selective use or disuse of organs, organisms gained or lost certain traits
- 6. preserved remains of ancient organisms
- 9. change over time
- 10. meaning similar body structures that come from a common ancestor
Down
- 1. any inherited characteristic that increases an organisms chance of survival
- 2. what does the insect in the first picture use to protect itself
- 3. made numerous observations and collected evidence about change over time
- 5. the ability of an individual to survives and reproduce in its specific environment
- 7. He predicts that human population will grow faster than the food and space available
- 8. well supported testable explanation