What are the two
What is a species? things that can What is an
cause variation adaptation?
within a population?
What are three What are the
factors that can adaptations and the What is biodiversity?
make up a niche? niche of a cactus?
Which of the three
What is a fossil? How are fossils parts of Lamarck’s
dated? hypothesis was
What ship did What were the three What does the
Charles Darwin ideas that influenced theory of natural
serve as naturalist Darwin’s work on selection state?
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An inherited trait that 1. Beneficial mutations Organisms that can
increases a population’s interbreed and produce
chance for survival. 2. Random crossing healthy, fertile offspring.
over during meiosis.
All the species Adaptations – Needles Amount of space, light,
that make up a and the ability to store moisture, temperature,
biological community. water what the organism eats,
Niche – Desert
Individuals can acquire
new characteristics Through Preserved remains of
during their lifetime and carbon-14 dating. an ancient organism
pass them on to their
Organisms with Geology, artificial
favorable traits are selection, and The Beagle
more likely to grow, population control
survive, and reproduce.
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How was Darwin
influenced by the What is What is
finches he observed gradualism? punctuated
on the Galapagos equilibrium?
If an organism dies
What feature do with 100g of carbon-
many vertebrate 14, how long would What is a
embryos have in it take to reduce this homologous
common? amount to 12.5g? structure?
Hint – Half-life is 5600yrs
What is an example What is an What is an example
of a homologous analogous of an analogous
structure? structure? structure?
What is a vestigial What is an example
structure? of a vestigial What is
structure in speciation?
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Populations remain The evolution of a new He observed that the
genetically stable for species as two finches were similar
long periods of time, populations become except for their beaks,
then undergo brief different over a long and that they may have
periods of rapid change. period of time. come from a single
A structure or function
found in two different Three years Gill pouches
species that may have
come from a shared
Bird and insect wings A characteristic that has Human arm and whale
similar functions in two fin or bat wing
species but different
The evolution of one or The appendix
more species from a Characteristics that are
single ancestor unused and thus
reduced in size.
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What are the What is divergent What is
two ways that evolution? Convergent
speciation can evolution?
If there are 1000
total alleles in a
What is population, and
coevolution? What is a gene 300 are for blue
pool? eyes, what is the
frequency of the
blue eye allele?
Name three of the
five conditions What is genetic What does a normal
required for genetic drift? distribution graph
equilibrium. look like?
What does a What does a
directional disruptive Free point
distribution graph distribution graph
look like? look like?
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When unrelated species When two or more Through
evolve similar populations of the same geographic and
characteristics. species become reproductive isolation.
The changing of one or
The combined genetic more species due to
30% material of all the their interactions with
members in a given each other.
A random change in Random mating, no
allele frequencies in a natural selection, no
population due to migration, no mutations,
chance events. and a very large
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