Natural Selection

3. living things, such as plants, animals, and bacteria
6. an instruction for making a protein molecule
8. a long piece of DNA that contains many genes
14. an animal that is hunted or killed by another animal for food
15. to stay alive
16. an event or process that leads to a result or change
17. the process by which the distribution of traits in a population changes over many generations
18. a graph that uses bars to show how characteristics or values are distributed within a group
19. a random change to a gene that sometimes results in a new trait
21. an organism produced as a result of reproduction
23. a group of individuals born and living at about the same time

1. a characteristic that all members of a species have
2. any difference in traits between individual organisms
4. an idea about what might happen that is based on what you already know
5. a way of hiding by looking the same as the background
7. everything (living and nonliving) that surrounds an organism
9. a related organism from a previous generation
10. a result or change that happens because of an event or process
11. to receive genes from a parent
12. a group of the same type of organisms living in the same area
13. a group of organisms of the same kind that do not reproduce with organisms from any other group
20. an animal that hunts and kills other animals for food
22. a type of molecule that genes and chromosomes are made of