Meiosis
Evolution
Mechanisms of Evolution
Speciation
The History of Life on Earth
100
Every gene you have are independently assorted into the gametes ( you can get “a” from mom or “a” from dad) You can get one or another from either parent
What is independent assortment
100
proposed that organisms change over time as a result of inheritance of acquired characteristics
What is Jean Baptiste de Lamarck
100
all the alleles in the population
What is gene pool
100
appearance of new species
What is Speciation
100
divides Earth’s history into a consistent sequence of geologic periods.
What is The geologic time scale
200
23
What is the number of daughter cells found after meiosis
200
All species have descended from common ancestors; change in the composition of a population overtime
What is evolution
200
Change in allele frequencies of a population overtime
What is evolution
200
occurrence of large-scale changes in the characteristics (traits) of life (i.e. evolution of higher taxa)
What is Macroevolution
200
Ordered sequence of fossils as they appear in rock layers, marking the passage of geologic time
What is The Fossil Record
300
how many times the cell divides
What is twice
300
individuals with certain inherited traits are more likely to survive and reproduce than are individuals with other traits.
What is natural selection
300
form of natural selection in which individuals with certain traits (sexual dimorphism) are more likely than other individuals to obtain mates
What is sexual selection
300
a group of populations whose members have the potential to interbreed with one another in nature and produce fertile offspring
What is biological species
300
Based on the decay of radioactive isotopes
What is Radiometric dating
400
a mixture of the genes and that neither the one from the mom or the one from the dad is dominant Alleles are mixed and neither are fully physically present by themselves
What is incomplete dominance
400
remnants of features that served important functions in the organism’s ancestors.
What is Vestigial structures
400
genetic exchange with another population
What is migration
400
initial block to gene flow is a geographic barrier that physically isolates the splinter population
What is Allopatric speciation
400
Atmospheric Composition Temperature Position of continents
What is how the earth has changed over time
500
for the purpose of organism level reproduction (gametes)
What is function of meiosis in the human body
500
evolution that results in a better fit between organisms and their environment
What is adaptive evolution
500
structures that have a similar function but evolved independently
What is Analogous Structures
500
concept to classify members of the same species. This concept states that members of the same species usually look alike.
What is morphological species
500
Theory that all continents had been joined in a single supercontinent and have since broken up
What is continental drift