Life Sci. Lesson 1-5

Stimulus and Response

● organisms respond to stimulus in

different ways

○ plant moving its leave

○ you have an itch= you scratch it

○ salmon swimming upstream = to

reproduce

Behavior

● a behavior an organism is born with is an instinct

(also known as innate behavior)

○ a honeybee does a “dance” when it returns to

the hive OR spiders making webs

Behavior cont.

● other behaviors need to be taught or learned:

○ animals taught what and where to eat

○ animals taught what animals to avoid

○ animals taught how to get to/open food

Animal Behaviors

● seasonal movement of animals= migration

● animals migrate for different reasons

○ find food

○ for warmer weather

○ to reproduce

Animal

Behavior

cont.

● spending winter months “sleeping”=

hibernation

○ animal is not active

○ body temperature lowers

○ heat rate slows

○ animal does not use much energy