Across
- 4. to stay alive
- 6. a related organism from a previous generation
- 10. a result or change that happens because of an event or process
- 12. the number of individuals with each trait in a population
- 14. larger cells with a nucleus
- 16. everything (living and nonliving) that surrounds an organism
- 18. to receive genes from a parent
- 20. a random change to a gene that sometimes results in a new trait
- 22. a group of the same type of organism living in the same area
- 25. something in the environment that affects an individual’s chances of surviving
- 26. a group of individuals born and living at about the same time
- 27. an organism produced as a result of reproduction
- 29. a specific characteristic of an individual organism
- 30. trait a trait that makes it less likely that an individual will survive in a specific environment
Down
- 1. an animal that hunts and kills other animals for food
- 2. living things, such as plants, animals, and bacteria
- 3. the process in which two parents pass on their genes to create offspring
- 5. any difference in traits between individual organisms
- 7. to put in groups based on shared characteristics
- 8. an instruction for making a protein molecule
- 9. a way of hiding by looking the same as the background
- 11. trait a trait that makes it more likely that an individual will survive in a specific environment
- 13. an event or process that leads to a result or change
- 15. a group of tiny organisms that are made of a single cell with important molecular differences from the cells of bacteria
- 17. an idea about what might happen that is based on what you already know
- 19. the process by which the distribution of traits in a population changes over many generations
- 21. a type of molecule that genes and chromosomes are made of
- 23. evidence of life from the past, such as fossilized bones, footprints, or leaf prints
- 24. a long piece of DNA that contains many genes
- 28. a graph that uses bars to show how characteristics or values are distributed within a group