Chap 2: Evolution, Genetics, & Experience Flashcards
Instinctive behaviors
Behaviors that occur in all like members of a species, even when there seems to have been no opportunity for them to have been learned
Asomatognosia
A deficiency in the awareness of parts of ones own body
Usually involves the left side of the body and damages the right parietal lobe
Social dominance
Miles combat with other makes such as physical damage, which is mainly posturing and threatening until one of the two combatants backs down
Courtship display
The male approaches the female and signals his interest whether by olfactory, visual, auditory, or tactful
Chordates
Animals with dorsal nerve cords (large nerves that run along the center of the back, or dorsum)
Spandrels
The incidental non adaptive evolutionary by product
Exaptation
Evolved to preform one function and were later co-opted to perform another
Homologous
Structures that are similar because they have a common evolutionary origin
Analogous
Structures that are similar but don’t have a common evolutionary origin
Convergent
The similarities between analogous structures
Brain stem
Regulates reflex activities that are critical for survival (e.g, heart rate, respiration, & blood glucose level)
Cerebrum
Involves in more complex adaptive processes such as learning, perception, & motivation
Promiscuity
Is a mating arrangement in which the members of both sexes indiscriminately copulate with many different partners during each mating period
Polygyny
An arrangement in which one male forms mating bonds with more than one female
Polyandry
A mating arrangement in which one female forms mating bonds than one male
Doesn’t occur in mammals occurs only in species where male reproduction is greater than those of the females
