Across
- 3. similar structures but have different anatomies
- 4. the transfer of genetic material from one population to another
- 7. the development of new species
- 9. a cell the develops into a reproductive cell
- 11. when a portion of a current population becomes isolated due to geographical barriers
- 12. members of the group that later gave rise to the modern human being
- 14. structures that evolved from the same ancestral body parts
- 16. located in the chromosomes which consists of DNA
- 18. when a specific number of species are separated from the rest of the group
- 19. occurs when there are no physical barriers preventing any members of a species from mating with another
- 20. species that have vestigial bind leg bones
Down
- 1. when a population moves from its current habitat to a new one
- 2. species that are similar to a zebra
- 5. any change in the genes of a population of organisms over a period of time
- 6. structures that are inherited that are often smaller and under-developed
- 8. a population of organisms with similar genes
- 10. the early stages of development of an organism
- 13. molecules that build and support body parts
- 15. drug used to treat infections caused by microorganisms and bacteria
- 17. remains of an organism