What’s an adaptation? A structure or behavior that helps an organism survive in its environment.
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What’s an adaptation?• A structure or behavior that helps an
organism survive in its environment.
Duck’s webbed feet
Monkey’s opposable
thumb
Snake’s hinged jaw
Fish swim in schools
Dogs chase away
strangers
Birds fly south for
winter
You shiver when cold
Wolf grows thick coat in
winter
Cats’ fur stands on end when threatened
STRUCTURAL ADAPTATION
BEHAVIORAL ADAPTATION
PHYSIOLOGICAL ADAPTATION
PART CHOICE AUTOMATICp 21
Adaptations
Can you tell the difference between the 3 types?
Structural, Behavioral, Physiological
Example: fish swim in schools (protection)
Example: bird calls (attract mates, defense)
Example: squirrels bury nuts (resource for winter)
Which type of adaptation?
Structural - Behavioral - Physiological
swimming in schools calls or
howls or cries
burying food for winter
Adaptation Definition Example
Structural
Behavioral
Physiological
- action done on purpose to help with survival - by choice
squirrels bury nuts (resource
for winter)
p 23
QUILLS on a porcupine (defense)
prehensile tail on a spider monkey
(for climbing)
thick fur on an arctic fox (for warmth)
QUILLS TAIL
FUR
Which type of adaptation?
Behavioral - Structural - Physiological
Adaptation Definition Example
Structural
Behavioral
Physiological
- physical feature that helps an organism survive - body part
- action done on purpose to help with survival - by choice
prehensile tail on a spider monkey
(for climbing)
squirrels bury nuts (resource
for winter)
p 23
Example: shedding
winter coat (stay cool in hot weather)
Example: sweating (stay cool)
Example: adrenaline is pumped into the bloodstream
when you get scared or surprised
(heart speeds up – you’re ready to run)
normal pupil pupil in low light
Example: your pupils automatically dilate (get bigger) in
dark places, to let in more light
Which type of adaptation?
Behavioral - Structural - Physiological
shedding fur in summer
sweating to cool you
adrenaline for speedy
escape
pupils change size to match the
light
Adaptation Definition Example
Structural
Behavioral
Physiological
- physical feature that helps an organism survive - body part
- action done on purpose to help with survival - by choice
- involuntary action or change- cell activity- automatic
prehensile tail on a spider monkey
(for climbing)
squirrels bury nuts (resource
for winter)
sweating to keep you
cool
p 23
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