Vocab

2. time scale, is a chart that divides earth history into different time units
6. breeding, the breeding of organisms for desirable characteristics
11. structures,body parts the preform similar function but differ in structure
12. selection,is the process by which populations of organisms with variations
13. evolution, is the change over time in populations of related species.

1. structures, are body parts of organisms that are similar in structure and positions.
3. structures, are body parts that have not lost their original function
4. anatomy, is the study of similarities and differences among organisms
5. The science of development of embryos from fertilization to birth
7. occurs when the last individual organism of a species dies
8. is an inherited trait that increases an organisms chance of surviving.
9. is a slight difference in an inherited trait of individual members of a species
10. records, is made up of all the fossil ever discovered on earth.