Natural Selection

2. a result or change that happens because of an event or process
4. a specific characteristic of an individual organism
5. a long piece of DNA that contains many genes
7. an organism produced as a result of reproduction
10. organisms from any other group
11. a way of hiding by looking the same as the background
14. pressure: something in the environment that affects an individual’s chances of surviving
17. a related organism from a previous generation
19. trait a trait that makes it more likely that an individual will survive in a specific environment
21. a type of molecule that genes and chromosomes are made of
22. a group of the same type of organism living in the same area
23. living things, such as plants, animals, and bacteria
25. a group of individuals born and living at about the same time
26. selection: the process by which the distribution of traits in a population changes over many
27. an animal that is hunted or killed by another animal for food

1. the number of individuals with each trait in a population
3. a characteristic that all members of a species have
6. everything (living and nonliving) that surrounds an organism
8. an instruction for making a protein molecule
9. any difference in traits between individual organisms
12. a group of organisms of the same kind (in one or more populations) that do not reproduce
13. a random change to a gene that sometimes results in a new trait
15. an animal that hunts and kills other animals for food
16. a graph that uses bars to show how characteristics or values are distributed within a group
18. trait: a trait that makes it less likely that an individual will survive in a specific
20. to receive genes from a parent
24. an event or process that leads to a result or change