Darwin
English naturalist, geologist, biologist and author
Who is Charles Darwin
This cannot be seen directly
What is Evolution by Natural Selection
will accept Natural Selection
A trait shaped by natural selection that increases the organism's reproductive success
What is Adaptation?
A random change in allele frequency that leads it to occur more common
What is Genetic Drift
The formation of a new species
What is Speciation?
The process by which modern organisms have descended from ancient organisms.
What is Evolution
What states that All living or extinct were derived from a common ancestor
What is Common Decent
Types of Adaptation?
Explain both
Camouflage & Mimicry
Migration of a smaller group to a new environment
The combination of place occupied by a species in its ecosystem and its role: where it lives, what it feeds on, and where it performs all of its actives
What is Niche?
True or False:
Individuals whose characteristics are not well-suited to their environment survive
Individuals whose characteristics are not well-suited to their environment die or leave fewer offspring.
Organs that are so reduced in size or function that they are merely traces of similar organs in there species
Provide an example:
What are Vestigial organs
Ex: Snakes tiny bones where legs used to be
Human - tail bone/appendix
What arises from Adaptation?
Fitness
Explain
Directional Selection
Stabilizing Selection
Disruptive Selection
1. When individuals at one end of the curve have a higher fitness
2. When individuals near the center of the curve have a higher fitness
3. When individuals at the upper and lower end have higher fitness
When members of two populations cannot interbreed and produce fertile offspring
What is Reproductive Isolation
Explain Artificial selection and give one example:
The intervention of human ensures that only individuals with the most desirable traits produce more offspring
Horse or dog breeders
Definition of Analogous structures
Structures with the same purpose and similar construction
The physical traits and behaviors that enable organisms to survive and reproduce are defined as?
Fitness
A series of what occurrances can cause an allele to become common in a population
What is Chance?
Behavior Isolation, Geographical Isolation and Temporal Isolation are all development stages of what?
Bouns Points (+1,000) to explain all 3 above
What is Reproductive Isolation?
Explain All 5 Influences that shaped Darwin's Thinking
1. Voyage of the HMS Beagle
2. Jean Baptiste de Lamarck
3. Influence of Geology
4. Influence of Farmers
5. Influence of Thomas Mathus
Explain all 5 of the Evidence of Evolution
1. Fossil Record
2. Comparative Anatomy
3. Comparative Embryology
4. Comparative Biochemistry
5. Geographic Distribution
What are the 5 conditions of Genetic Equilibrium?
Random Mating
Large Population
No Mutations
No Natural Selection
What on a signal gene leads to changes in allele frequencies and thus leads to evolution?
What is Natural Selection?
Explain how the Finches of the Galápagos Islands Occurred?
1. Founders Arrived
2. Separation of Populations
3. Changes in gene pool
4. Reproductive Isolation
5. Ecological Competition
6. Continued Evolution