method used to determine the age of rocks by comparing them with those in other layers
What is relative dating?
100
method used to determine the age of rocks using the rate of decay of radioactive isotopes
What is radiometric dating?
100
process in which individuals with average traits are removed, creating two populations with extreme traits
What is disruptive selection?
100
the organisms that dominate the Cenozoic era
What are humans?
100
the organisms that dominated the Paleozoic era
What are plants?
200
an individual moving to an area
What is immigration?
200
an individual moving from an area
What is emigration?
200
type of natural selection that favors average expression of a trait while eliminating extreme expression of a trait
What is stabilizing selection?
200
the age of the Earth
What is 4.6 billion years?
200
believed that giraffes stretched their necks to reach food. Their offspring and later generations inherited the resulting long necks
Who is Lamarck?
300
the name of the boat that Darwin rode on
What is the H.M.S. Beagle
300
the organisms that Darwin studied
What are the finches and tortoises?
300
selection that increases the expression of an extreme version of a trait in a population
What is directional selection?
300
very hot, covered in rock, and anaerobic
What are characteristics of early earth?
300
resistance of a microbe to an antimicrobial medication that used to be effective in treating or preventing an infection caused by that microbe caused by mutations
What is antibiotic resistance?
400
morphological adaptations in which a species evolves to blend into with their environment
What is camouflauge?
400
morphological adaptations in which one species evolves to resemble another species
What is mimicry?
400
is the set of all genes, or genetic information, in any population, usually of a particular species
What is the gene pool?
400
this is the era that Pangaea broke up and when single celled organisms evolved
What is the Precambrian era?
400
an example of this is that human hemoglobin is more similar to chimp hemoglobin than mouse hemoglobin
What is biochemical evidence?
500
a structure that has the same function but different construction and was not inherited from a common ancestor
What is an analogous structure?
500
anatomically similar structures inherited from a common ancestor
What is a homologous structure?
500
the organisms that dominated the Mesozoic era
What are reptiles?
500
this is something that marks the beginning of every era
What is mass extinction?
500
describes the decreased susceptibility of a pest population to a pesticide that was previously effective at controlling the pest caused by a mutation in the pest