Natural Selection

5. a type of molecule that genes and chromosomes are made of
9. living things, such as plants, animals, and bacteria
11. an organism produced as a result of reproduction
14. a long piece of DNA that contains many genes
17. a random change to a gene that sometimes results in a new trait
18. a group of the same type of organism living in the same area
20. an animal that is hunted or killed by another animal for food
22. the process in which two parents pass on their genes to create offspring
23. a group of individuals born and living at about the same time
24. organisms from any other group

1. a trait that makes it less likely that an individual will survive in a specific
2. an instruction for making a protein molecule
3. a way of hiding by looking the same as the background
4. any difference in traits between individual organisms
6. the number of individuals with each trait in a population
7. a specific characteristic of an individual organism
8. everything (living and nonliving) that surrounds an organism
10. a related organism from a previous generation
12. to stay alive
13. an animal that hunts and kills other animals for food
15. to receive genes from a parent
16. a graph that uses bars to show how characteristics or values are distributed within a group
19. a trait that makes it more likely that an individual will survive in a specific environment
21. selection: the process by which the distribution of traits in a population changes over many
22. a group of organisms of the same kind (in one or more populations) that do not reproduce