Whats an adaptation A structure or behavior that

What’s an adaptation? • A structure or behavior that helps an organism survive in its environment.

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)

burying food for winter swimming in schools calls or howls or cries Which type of adaptation? Structural - Behavioral - Physiological

p 23 Adaptation Definition Example Structural Behavioral Physiological - action done on purpose to help with survival - by choice squirrels bury nuts (resource for winter)

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

p 23 Adaptation Definition Structural - physical feature that helps an organism survive - body part Behavioral - action done on purpose to help with survival - by choice Physiological Example prehensile tail on a spider monkey (for climbing) squirrels bury nuts (resource for winter)

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)

Example: your pupils automatically dilate (get bigger) in dark places, to let in more light normal pupil in low light

shedding fur in summer sweating to cool you adrenaline for speedy escape pupils change size to match the light Which type of adaptation? Behavioral - Structural - Physiological

p 23 Adaptation Definition Example Structural - physical feature that helps an organism survive - body part Behavioral - action done on purpose to help with survival - by choice squirrels bury nuts (resource for winter) - involuntary action or change - cell activity - automatic sweating to keep you cool Physiological prehensile tail on a spider monkey (for climbing)

p 21 PART CHOICE AUTOMATIC STRUCTURAL ADAPTATION BEHAVIORAL ADAPTATION PHYSIOLOGICAL ADAPTATION Duck’s webbed feet Fish swim in schools You shiver when cold Monkey’s opposable thumb Dogs chase away strangers Wolf grows thick coat in winter Snake’s hinged jaw Birds fly south for winter Cats’ fur stands on end when threatened