IB Bio Animal Behavior

type that develops despite environment

controlled by organisms’ genes

fight-or-flight response in humans

type that is not genetically programmed

increase organisms’ chances of surviving (most learned behaviors do not)

direct response to stimulus

response to chemicals in environment

soft corals release toxic terpenoid or sacrophine compounds

response to light stimulus

cockroach runs for cover when light turns on

response to gravity

humans have a sense of gravity (where up & down is), even when they cannot see

response to water current

fish swim into/against current to stay in place instead of flowing w/ current

response to touch

pet labrador retriever’s back → tail wags faster

movement in response to non-directional stimulus

no, organism does not move toward or away from stimulus

greater stimulus, faster movement

wood lice (roly poly) - drier environment, faster movement b/c they like high humidity environments

greater stimulus, change directions more often

flatworms - more light, change directions more often until able to hide in cool, dark environment

young animal becomes attracted to mother

ducklings imprint on their mother

learned how to hide food in ground → forgot about it → trees obtain nutrients to grow & provide food for future squirrels

learn by trial & error (ex: use sticks to eat ants in ant hills)

learn from mother

two or more animals, normally of same species) that interact w/ each other

fertile female

• lays eggs

• produces pheromones → calm colony, other females become sterile

sterile female

• feeds larvae

• produces wax & honey

• searches for nectar & pollen

• protects hive

fertile male developed from unfertilized egg

• mates w/ queen

eusocial