chapter 11

4. body parts that perform a similar function but differ in structure
6. the impression of an organism in a rock
8. the preserved evidence of the activity of an organism
11. is a chart that divides Earth's history into different time units
13. adaptation that enables a species to blend in with its environment
14. occurs when the last individual of a species dies
16. an inherited trait that increases an organism's chances of surviving and reproducing in its environment
17. body parts that have lost their original function through evolution

1. the breeding of organisms for desired characteristics
2. change over time in population of related organisms
3. the process by which population of organisms with variations that help them survive in their environment live longer, compete better, and reproduce more than does who do not have that variation
5. record made up of all the fossils ever discovered on Earth
6. the resemblance of one species to another
7. a person that studies plants and animals by observing them
9. body parts of organisms that are similar in structure and position but different in function
10. slight difference in an inherited trait of individual members of a species
12. the study of similarities and differences among structure of living species
15. is a copy of an organisms in a rock