Evolution 1
Change over time
Evolution
Preserved remains of ancient organisms
Fossils
Proposed the theory of evolution by natural selection
Charles Darwin
Extinction
Process that makes evolution happen
Natural Selection
Another term for Survival of the Fittest
Natural Selection
The islands Darwin visited
States that the oldest rock layers are on the bottom, youngest on the top
Law of Superposition
The two main goals of all species
Survive and reproduce
The struggle between organisms to survive as they use the same limited resources
Competition
Genetic information that can be used to find relationships between organisms and prove evolution
DNA
A group of simliar organisms that can have offspring together
Species
Their environment
When a freak accident wipes out a large portion of multiple populations of organisms
Think of the dinos
Mass Extinction Event
Birds with differently shaped beaks depending on the island they lived on
Finches
T or F
Humans Evolved from Monkeys
Explain your answer
False
we have a common ancestor but if we evolved from them, they wouldn't be here today
A student wonders if studying longer leads to better test scores. She studies for different amounts of time before each quiz and records her scores.
What is the independent variable?
What is the dependent variable?
IV: Time studying
DV: Her scores
What units of genetic material determine what living things look like?
All the fossils throughout the history of Earth
The fossil record
Similar structures that evolved from a common ancestor.
Homologous structures
Give an example of artificial Selection
Easiest example: Dogs
Name two of the three steps of natural selection
Variation
Adpation
Selection
What changes did Darwin observe in finches in the Galapagos
Beaks
Genetic Variations are passed down through
Reproduction/offspring
During the Industrial Revolution, the population of dark-colored (melanic) peppered moths increased while the population of light-colored moths decreased. However, after pollution levels dropped, the population of light-colored moths increased again.
Based on this, explain how natural selection acted on the moth population
Answers Vary