change frequency alleles
evolution is a _______ in the __________ of _______ over time in a population
jean baptiste lamarck
who was the first person to propose the idea of evolution
use disuse body deteriorate
lamarck’s two ideas: ___ and _______ - says that parts of the ____ that are used more are larger and stronger and evolve and the unused parts _________
inheritance acquired lifetime offspring
lamarck’s two ideas: __________ of _______ traits - traits that develop during _________ are passed on to _________
no
were any of lamarck’s ideas correct?
beagle origin species natural selection
what was charles darwin’s ship called? HMS _______
and charles darwin wrote the book _______ of _______, which supported the theory of _______ __________
organisms characteristics offspring
a SPECIES is a group of ___________ with similar ____________ that is capable of inbreeding, meaning they can produce viable __________
environment reproduce
NATURAL SELECTION: organisms best suited to their ____________ survive and ________ more frequently
descent modification record descendants
darwin’s 2 theories about evolution! the first one:
_________ with ___________: newer forms appearing in the fossil ____ are actually the modified __________ of older species
modification natural selection adapted reproduce traits
darwin’s 2 theories about evolution! the second one:
___________ by _______ __________: species that are best _________ to their environment are more likely to survive and __________, passing those favorable _______ to their offspring
descent with modification
example of one of darwin’s theories: different species of finches on galapagos islands desceded from recent common ancestor
modification by natural selection
example of one of darwin’s theories: the beaks of finches (think survival of the fittest)
selection domesticated desired
evidence for darwin’s theory: artificial _________: the breeding of __________ plants and animals to select for ________ traits
galapagos adaptations niches
evidence for darwin’s theory: beaks of _________ finches: different species of finches arose due to _________ of beaks to occupy different ______
biogeographs past present
evidence for darwin’s theory: ____________: study of ____ and _______ distributions of species (divergent evolution)
record traits time
evidence for darwin’s theory: fossil _____: shows how the _______ and characteristics of species changed over ____
same different
evidence for darwin’s theory: comparative anatomy:
homologous structures: ______ structure ______ function
different same
evidence for darwin’s theory: comparative anatomy:
analogous structures: ______ structure ______ function
vestigial no
evidence for darwin’s theory: ________ structures: structures that serve __ purpose
animals hox
evidence for darwin’s theory: comparative embryology: embryos for a variety of _______ all have a similar stage. embryological development: ___ genes
biology DNA proteins
evidence for darwin’s theory: molecular ________: similarities in ___ and ________
artificial selection
example of which evidence supporting darwin’s theory: breeding two racehorses to get the fastest horse
homologous structures
example of which evidence supporting darwin’s theory: wings of a bird and arm of a human being very similar (falls within the comparative anatomy section)
analogous structures
example of which evidence supporting darwin’s theory: wings of birds and insects both being used for flight (falls within the comparative anatomy section)
vestigial structures
example of which evidence supporting darwin’s theory: tailbone and appendix in humans
comparative embryology
example of which evidence supporting darwin’s theory: embryos for fish frogs birds snakes rabbits gorillas humans all look similar in one stage
artificial selection, beaks of galapagos finches, biogeographs, comparative anatomy (homologous and analogous structures), vestigial structures, comparative embryology, molecular biology
name as many pieces of evidence that support darwin’s theory as you can. i’ll write them all in order but look through and check and count it right if you got 5!
populations
do individuals or populations evolve?
population
a __________ is a localized group of individuals belonging to the same species, living in a certain area
species
a _______ is a group of populations where individuals can reproduce with one another and make viable offspring
gene pool
a ______ ____ is the total aggregate of genes in a population at any one time
gene allele
gene versus allele: which is plant height overall and which is tall versus short (write in order like “allele gene” or “gene allele”)
allele frequencies
evolution occurs when there is a change in the ______ ___________ of a population
p^2+2pq+q^2
what is the hardy weinburg equation? (no spaces)
hardy-weinburg theorem constant recombination
the ______________ states that the frequency of alleles and genotypes in a population’s gene pool remains _______ over generations unless acted upon by agents other than sexual ___________
population size isolation mutations random no selection
five causes for the HW theorem to be maintained aka no evolution:
large __________ ____
__________ from other populations
no _________
________ mating
__ natural ________
small not isolated mutations mating natural selection
five causes for HW to NOT be maintained aka evolution:
_______ population
___ __________ (immigration/emigration occuring)
m________
no random _________
n________ ___________
microevolution
_____________: the changes in allele frequencies that occur over time within a population
genetic drift
causes of microevolution:
_______ _____: changes in a gene pool of small population due to chance
bottleneck
__________ effect: when natural disaster wipes out a large percentage of the population and the remaining population is not representative of the original population
gene flow
causes of microevolution:
____ ____: the loss/gain of alleles from a population due to emigration/immigration of fertile individuals
mutations
causes of microevolution:
________: change in organism’s DNA
nonrandom mating
causes of microevolution:
_______ ________: inbreeding, mating between closely related partners, or assortive mating, individuals selecting partners similar to themselves
natural selection
causes of microevolution:
_______ _______: organisms who survive reproduce more frequently
stabalizing
natural selection affecting a heritable trait in a population (3 ways):
_________ selection: reduces phenotypic variation by selection for the most common phenotype
directional
natural selection affecting a heritable trait in a population (3 ways):
__________ selection: shift of overall makeup of population by favoring one extreme phenotype
diversifying
natural selection affecting a heritable trait in a population (3 ways):
_________ selection: favors both extremes over the more common intermediate phenotype
diversifying selection
peppered moths are an example of
directional selection
the beak size of finches getting larger in years when they ate more large seeds and then changing for future generations is an example of
stabalizing selection
babies that are too big or small dying are an example of
adaptive radiation
the semi circle of birds that looks like a sun (radiation) is