The remains or imprints of organisms from earlier geological periods preserved in sedimentary rock
Fossils
The structures of these body parts are similar, but have changed in function over time due to their environment.
Homologous Structures
Field of study that compares and contrasts embryos of different species
Comparative Embryology
Larger cells engulfed smaller prokaryotes which then became part of the larger cell. Which theory is this?
Endosymbiosis

What organism is most closely related to the pig?
Whale
Where are simple and older fossils found?
Bottom
Body parts that are non-functional, but past ancestors may have used them.
Vestigial Structures
Which two organisms would you think share a closer common ancestor based on biogeography? The Blue finch and the _______. explain your answer. 
Green Warbler because there is a mountain that divides the other two birds.
What two theories involve in the development of ancestorial prokaryotes becoming Eukaryotes?
Endosymbiosis & Autogenous Theories.
What is the term that has occured at point 3? I am looking for a specific term.

Extinction. Species are going Extinct.
Where are newer and more complex fossils found?
Top
Name two barriers that could impact common ancestry when thinking about biogeography.
Mountains, Deserts, Oceans...
Why do embryos of different organisms look similar?
Because they share a common ancestor
What is autogenous theory?
The membrane of a single ancestral prokaryotic cell folded inward on itself.
Name the organisms from most closely related least closely related of our unknown organism. 
Monkey, Bear, Shrew, Mouse
Fossil records suggest that organisms have
Common ancestry
Different structure, same function
Analogous Structures
The study of embryology shows similarities during the early development of embryos. Why would you think this occurs?
They share a common ancestor
Endosymbiosis is the believed theory to have created which organelles?
Chloroplast and Mitochondria
The chart below shows differences of cytochrome c. Which two organisms are most closely related?
During punctuated equilibrium organisms will stay the same and then rapidly evolve due to an event or situational change. What is the period called when they stay the same?
Stasis
Which 2 types of structures suggest common ancestry?
Homologous and Vestigial
What factor has change to cause differences in homologous structures across species? If all the species once came from a common ancestor why are the structures now different?
Name 3 organelles that are believed to have been formed from autogenous theory.
Nuclear Envelope, Endoplasmic Reticulum, and Golgi Apparatus.
At which point do organisms 5,6 and 7 show a most recent common ancestor?
Node F