bio unit 7 vocab

4. Evidence-the study of the early stages of development in a zygote/developing embryo
6. Fertilized egg, embryo of a new developing organism
9. Evidence-random neutral mutations accumulate in the genome of a species and can be used to determine how long ago an evolutionary split between species occures
10. Section of the evolutionary tree that shows derived characters and ancestral/evolutionary groups of organisms
12. Pattern-a small group diversifies into new species or distinct forms
13. Scientific classification that organizes living things into related categories
14. Pattern-When 2 species that closely interact evolve in response to each other together over time
19. Evidence/Pattern-When unrelated organisms evolve to look similar because of environmental demands
20. Evidence-unused structures or organs in an organism that are remnants of ancestral species
21. Newly adapted characteristics, used to separate species on a cladogram

1. Pattern-long periods of genetic equilibrium interrupted by periods of rapid change
2. Survival of the fittest-those organisms best suited to their environment survive and reproduce-proposed by Charles Darwin
3. Large scale change in species, formation of new species, or change over long periods of time
5. 2 part scientific naming system used to identify organisms
7. Pattern-when a species is no longer present on Earth
8. Evidence-master control genes that determine placement of limbs/organs and development in organisms
11. Evidence-When different structures are used for different proposes in different organisms
15. Evidence-when the same structures between species are used in different ways
16. Theory that explains how the first eukaryotic cells came from a symbiotic relationship between cooperating prokaryotic cells
17. Small scale change in allele frequencies in a population
18. Evidence-collection of fossilized remains that show changes in organisms through geologic time