This is the process of biological change in populations over time that makes descendants genetically different from their ancestors.
What is Evolution?
What is speciation?
These link ancestral species to their descendants.
What is transitional fossils?
This theory suggests that overtime, coevolution of the two prokaryotes occurred and eventually led to speciation and the 1st eukaryotes.
What is the Endosymbiotic Theory?
A section of a chromosome that is an imperfect copy of a functional gene, also provides evidence of divergent evolution.
What are pseudogenes?
Random change in the frequency of alleles in a population over time.
What is Genetic Drift?
These two types of elimination occur at a slow rate as well as occurring when a catastrophic event changes the environment suddenly.
What is gradual extinction and mass extinction?
These structures have little or no function to an organism. Could be leftover from an ancestor that had used the structure, and thus could provide evidence of divergent evolution.
What is vestigial structures?
Name this diagram.
What is a phylogenetic tree?
Which species is extinct?
This English Naturalist created the theory that states "organisms with the best traits will live longer and reproduce more over time."
Who is Charles Darwin?
This is when bursts of change are followed by periods of stability.
What is punctuated equilibrium?
These species exist only in one geographic region and are a result of divergent evolution.
Example: Galapagos Tortoises
What are endemic species?
Which groups are most closely related to each other?
Rose and Pine or Moss and Ferns
Lots of offspring and limited resources cause what?
What is competition?
What are the four principles of natural selection?
What is...
1. Overproduction of Offspring
2. Variation
3. Adaptation
4. Descent with Modification
An evolutionary biologist is studying several species of closely related lizards found on Cuba and surrounding islands. Each species occupies a somewhat different niche, but in some ways they all look similar to the green anole lizard found in Florida. Which is the most likely pattern of evolution for these lizards?
What is adaptive radiation?
Similar structures that suggest evidence of common ancestry. Similar structure, but different function, due to being used in different environments. A result of divergent evolution.
What are homologous structures?
Which groups are least closely related?
Rose and Moss
When there are no changes in the allele frequencies in a population over time
What is genetic equilibrium?
Name three of the five mechanisms of micro-evolution.
1. Mutations
2. Natural Selection
3. Genetic Drift
4. Gene Flow
5. Non-random mating (Sexual Selection)
The fur seal and the emperor penguin both have streamlined, fishlike bodies and a layer of insulation underneath the skin. Both animals use webbed limbs to swim in an aquatic environment. Identify the evolutionary principle that applies to the evolution of these two animals.
What is convergent evolution?
Hint: -ology
1. Paleontology
2. Morphology
3. Biogeography
4. Embryology
5. Biochemistry
Which group diverged first (longest ago)?
What is moss?
Explain the theory that Charles Darwin created.
What is natural selection- organisms with the best traits/adaptations survive better and reproduce more