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What is Charles Darwin’s theory called
Theory of Natural Selection
Whats the name of Charles Darwin’s book?
On the Origin of species
Whats the name of the boat Charles Darwin was on?
HMS beagle
Whats the name of the islands Charles Darwin was on?
Galapagos Islands
What does an odd number of chromosomes cause you to be?
sterile
Which scientists theory goes with “Survival of the fittest”?
Darwin
Whats the name of the main animal Charles Darwin studied?
finch
What was Lamarck’s theory called?
Theory of acquired characteristics
Which scientist’s theory had to do with use and disuse
Lamarck
Lamarck said that change happened
within an organisms lifetime
Darwin said that change happened
through generations
What was the name of Lyell’s book?
Principles of Geology
Which scientists studied the rock layers?
Hutton and Lyell
What are the rock layers called?
strata
What is uniformitarianism?
same forces that changed earth in the past are the same that operate today and will in the future
Which scientist witnessed poverty in the streets of London
Malthus
What did Malthus state are the reasons that populations are limited?
War, disease, and resources
What is artificial selection?
humans select the traits they want or find most useful called selective breeding
What is natural selection?
organisms that are best suited to the environment survive and reproduce
What is fitness?
ability of an organism to survive and reproduce in a specific environment
What is adaptation?
an inherited characteristic that increases chance of survival
What is common descent?
all species, living or dead, come from a common ancestor.
What is the Fossil record?
record of history of life on earth
What is the Law of Superposition
invertical strata, the oldest layers are on the bottom and the youngest are on top
What is convergent evolution?
2 or more unrelated species appear to be very similar
What is divergent evolution?
2 or more related species appear to be very dissimilar
What are homologous structures
same structure, different function
What are analogous structures
different structure, same function
What are vestigial structures?
reduced function of parts used by ancestors that are not used in modern organisms
What is mimicry?
one organism copies or mimics another organism for protection
What is camouflage?
an organism blends in with its surroundings for its protection
What is morphology
the study of internal and external structure and appearance of an organism
What is embryology
the study of formation and early growth of an organism
What is the top bone in the arm?
Humerus
What is the second bone that’s on the thumb side in the arm?
Radius
What is the second bone that’s on the pinky side in the arm?
Ulna
What bones connect the bottom of the fingers to the arm?
carpals
What is the bone of the fingers that connect to the carpals in the arm called?
metacarpals
What is the bone of the fingers that doesn’t connect to the carpals in the arm?
phalanges
What is a Single-Gene Trait?
one gene controls the trait causing two phenotypes
What is a Polygenic Trait?
two or more genes control the trait causing many phenotypes
What is a Gene Pool?
all genes present in a population including different alleles
What is Allele Frequency?
number of times an allele occurs in a gene pool
What is Stabilizing Selection?
average form of a trait is favored
What is Directional Selection?
one extreme form of a trait is favored
What is Disruptive Selection?
both extreme forms of a trait are favored
What is genetic recombination?
23 pairs of chromosomes = 8.4 millions gene combinations in humans
When does crossing over happen?
prophase 1 of meiosis
What are the three types of genetic variation?
mutation, crossing over, and gene shuffling
What are the five things needed for the Hardy Weinberg Principle?
random mating, large populations, no migration no mutations, and no natural selection
What principle is required to maintain genetic equilibrium?
Hardy Weinberg Principle
What is genetic drift?
alleles change due to chance
What types of populations does genetic drift have LESS effect on?
large populations
What is genetic equilibrium?
all alleles in a population remain the same
What are the two types of genetic drift?
bottleneck effect and founders effect
What is the bottleneck effect?
dramatic reduction in population size
What is the founders effect?
migration of a small subgroup of a population
What are species?
populations or groups of populations whose members can breed and produce offspring
What is speciation
the formation of a new species
What is reproductive isolation
when populations can no longer interbreed and they can evolve into separate species
What are the three types of reproductive isolation?
behavioral, temporal, and geographic
What is behavioral isolation?
populations have different mating rituals or other behaviors
What is temporal isolation?
populations reproduce at different times
What is geographic isolation?
populations are separated by a geographic barrier
What is punctuated equilibrium?
long stable periods interrupted by brief periods of rapid change in a species
What is gradualism
slow and steady change in the lineage of a species
What is adaptive radiation?
a species evolves into many different forms
What is coevolution?
two species evolve in response to one another
How many places do we round to on the test during Hardy Weinberg problems?
4 decimal places
What do punnet squares predict?
offspring
What does the Hardy Weinberg Principle predict?
populations
Which equation equals the allele frequency?
p+q=1
Which equation equals the gene combination frequency?
p2+2pq+q2=1
Which variable equals the dominant allele in the Hardy Weinberg equations?
p
Which variable equals the recessive allele in the Hardy Weinberg equations?
q