Evolution
What is Law Of Superposition?
The prediction of the top rock layers are the youngest and the bottom rock layers are the oldest.
What is Analogous Structure?
Body parts that share a common function, but not structure.
Sequence of life,upper is newer, older is deeper- deeper are extinct
Fossil Record
Dead organism is buried and minerals in water replace the organism’s original material and harden into rock
Mineralizaation
More precise dating by age in years Ex. 540 million yrs. Igneous Rock
absolute-age dating
Change over time
Evolution
What is Homologous?
Structures in a different function/species but are similar because of common ancestry.
Structures that are similar in unrelated organisms. They evolved to do the same job, not because they were inherited from a common ancestor.
Analogous structures
Evidence of the activity of an organism such as tracks or footprints
trace fossils
What is Prokaryote?
An organism without a nucleus or membrane bound organelles.
What is Relative Dating?
A technique used to determine which of two fossils is older.
What is a Vestigal Structure?
A structure that is present in an organism but no longer serves its original purpose (ex; wisdom teeth, human tailbones)
Organism’s structures and behaviors for finding food, protection and moving from place to place. Ex. Humans have opposable thumbs
Adaptations
Forms as an impression in rock, and then the impression is filled in with sediment and hardens into rock
Mold and cast
What is Eukaryote?
An organism with a nucleus and membrane bound organelles.
Same bones that have changed function over time.
Ex Phalanges
Homologous Structures
Name of the insect that changed during industrialization
Pepper Moth
Adaptation that enables an organism to blend into the environment
Camouflage
Preserved original tissue in ice, tar or amber. Ex. frozen mammoth, mosquito in amber
Original Material
What was the variation of the finches?
Beaks
What is Natural Selection?
Natural selection is a process in which individuals that have certain inherited traits tend to survive and reproduce at higher rates than other individuals.
What room are we in?
300
Scientist who studies nature (Darwin)
Darwin
Dead organism is compressed over time and pressure drives off the liquids and gases. Leaves behind a carbon outline or film.
carbonization
What islands did Darwin find the finches on?
Galopogous