science

3. living things, such as plants, animals, and bacteria
5. a group of organisms of the same kind
7. the process by which species adapt to environmental changes over a very long time
9. a random change to a gene that sometimes results in a new trait
11. to receive genes from a parent
12. a specific characteristic of an individual organism
13. a group of the same type of organism living in the same area
14. sharing a common ancestor population

1. a group of individuals born and living at about the same time
2. evidence of life from the past, such as fossilized bones, footprints, or leaf prints
4. a related organism from a previous generation
6. having died out completely and no longer alive anywhere on Earth
8. everything (living and nonliving) that surrounds an organism
10. to classify based on scientific examination
15. an organism's arm, leg, or wing