chapter 11

2. is a copy of an organisms in a rock
3. the resemblance of one species to another
9. body parts that perform a similar function but differ in structure
11. slight difference in an inherited trait of individual members of a species
12. body parts of organisms that are similar in structure and position but different in function
14. body parts that have lost their original function through evolution
15. the preserved evidence of the activity of an organism
16. is a chart that divides Earth's history into different time units

1. change over time in population of related organisms
2. adaptation that enables a species to blend in with its environment
4. occurs when the last individual of a species dies
5. the breeding of organisms for desired characteristics
6. a person that studies plants and animals by observing them
7. the study of similarities and differences among structure of living species
8. the impression of an organism in a rock
10. the process through which populations of living organisms adapt and changeadaptation an inherited trait that increases an organism's chances of surviving and reproducing in its environment
13. record made up of all the fossils ever discovered on Earth