Transcript What is “Natural Selection”?

Jeopardy
Theory
Taking the
Heat
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Getting
Out
Staying
Alive
Relationships
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To compensate for a high
mortality rate, numerous
offspring are produced.
What is Over-production?
nd
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The
part of the theory
that discusses the result of
slight, random mutationswhich may or may not help
an organism survive.
What are “Inherited
Variations”
He wrote the book, The
Origin of the Species by
Natural Selection after
visiting the Galapagos
Islands.
Who is Charles Darwin?
The part of Darwin’s
theory that describes the
difficulty species have in
finding food & avoiding
predation
What is “Struggle to
Survive”?
The theory that explains the
process by which organisms
with favorable traits survive &
reproduce at a higher rate than
others without the favorable
trait.
What is “Natural Selection”?
Desert hedgehogs, foxes and
jackrabbits use these to cool
their blood as the breeze blows
across their skin surface.
What are large
“radiator” ears?
Body temperatures are
regulated internally for these
animals. Sweating, shivering,
panting, & throat fluttering
(birds) are actions used to help
control their temperature.
What are Endotherms?
A behavioral adaptation
in desert animals whose
daily cycle includes
hunting at night and
resting during hot days.
What is being nocturnal?
DAILY
DOUBLE
Desert animals whose lightcolors help them blend in
with the desert sand use this
kind of protection.
What is concealing coloration
or protective coloration?
Also known as “coldblooded,” their body
temperature is affected by
external conditions.
What are Ectotherms?
To re-locate to another place
due to harsh conditions or to
find food.
What is Migration ?
A period of inactivity when and
animal’s body temperature and
heart rate drop.
What is
Hibernation?
A period when plants drop their
leaves due to harsh
temperatures, reduced sunlight,
or drought.
What is Dormancy?
A period of inactivity, like
hibernation, when desert
animals retreat from heat
and/or lack of water. (hint:
the spade foot toad or desert
tortoise
What is Estivation?
Plants that drop their
leaves during the fall.
What are Deciduous
Trees or Plants?
The subject of a case study in
Manchester England around
the time of the Industrial
Revolution. They were said to
change colors over several
generation in response to trees
affected by pollution.
What are Moths or Peppered
Moths?
What happened to the
toothpickta when it could not
compete with the Tweezarians &
Blade Runners for food.
What is Extinction?
They are random variations
which may or may not affect
the organism’s ability to
survive.
What are
mutations?
Having the ability to survive in
their environment.
What are adaptations or
what is biological fitness?
When these are introduced into
an eco-system the natural
balance may be disrupted
because they have no natural
predators and are not
indigenous to the area.
What are non-native or
invasive species?
The coyote and the jack
rabbit have this kind of a
relationship in which one
is hunted and the other is
the hunter.
What is Predator – Prey
relationship?
In this relationship, like the
mistletoe and the mesquite, one
benefits at the expense of the
other.
What is Parasitism
The red-tailed hawk, the
coyote, and the rattlesnake all
like to eat ground squirrels.
These predators have this kind
of relationship.
What is a Competitive
Relationship?
Desert Javelina and the
mesquite tree have a helpful
relationship in which one eats
the beans, and in turn the
animal spreads the seeds and
helps them germinate through
digestion
What is mutualism?
The cactus wren benefits from
the cholla cactus as the bird
builds its nest in it. The cactus
gets nothing in return and is
not harmed.
What is commensalism?
FINAL
JEOPARDY
Theory Application
?
When a new species
forms due to
geographical, ecological
or seasonal isolation.
What is SPECIATION?