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Bio ch 51
| Question | Answer |
|---|---|
| what's behavior | a response to a stimulus carried out by an organsism |
| why is behavior important (evolutionary) | increases survival and reproductive success (fitness) |
| proximate cause of behavior | HOW it occurs (mechanism: hormones, nerves) |
| ultimate cause of behavior | WHY it occurs (evolutionary advantage) |
| fixed action pattern (FAP) | innate, unlearned behavior that is unchanged, is triggered by a sign stimulus |
| what's a sign stimulus | external cue that triggers a fixed action pattern |
| pheromone | chemical signals released by one organism and received by another used for mating, alarm, territory |
| innate vs learned behavior | innate- genetice, automatic learned- modified by experience |
| what's imprinting | leading during a critical (sensitive) period early in life |
| associative learning | learning to make a connection between one factor and another |
| classical conditioning | type of associative learning associate 2 stimuli ex- neutral song is player before car accident, later hearing the song causes fear |
| operant conditioning | type of associative learning learning from trial/error experience or reward/punishment ex; training dogs using treats |
| optimal foraging theory | maximize energy gained vs energy spent the compromise of obtaining food and the costs in order to do so |
| sexual selection | selection for traits that improve mating success |
| how does mate choice drive evolution | preferred traits increase over generations |
| what's fitness | ability to survive and reproduce (pass on genes) |
| what altruism | behavior that reduces individual fitness but helps others |
| why does altruism exist | increases inclusive fitness which helps relative survival |
| kinesis | non directional movement in response to stimulus |
| what is taxis | directional movement towards/away from stimulus |
| what's chi square | tests if results are due to chance or not |
| if x^2 is greater than the critical value what happens | we reject null hypothesis |
| if x^2 is smaller than the critical value what happens | we fail to reject the null hypothesis |