chemical substance that regulates life functions and behaviors
A plant hormone that is involved in cell elongation
plant hormone that stimulates growth of stems
plant hormone that causes rapid growth by causing faster cell divisions
A growth response of a plant toward (positive) or away (negative) from a stimulus
where a plant responds to movement, but is not dependent on the direction of the stimulus. ex. Venus fly trap
behavior that an organism is born with and does not have to be learned, such as a reflex or instinct
a simple, automatic, inborn response to a sensory stimulus, such as the knee-jerk response
Flight or Fight Response
physiological response of the body to stress, which prepares the individual to take action by stimulating the vital defense system.
a complex inherited behavior pattern
type of behavior in which an animal sends out stimuli—such as sounds, visual displays, or chemicals—in order to attract a member of the opposite sex
A behavior in which an animal defends a bounded physical space against encroachment by other individuals, usually of its own species. Territory defense may involve direct aggression or indirect machanisms such as scent marking or singing.
A linear "pecking order" of animals, where position dictates characteristic social behaviors.
a daily cycle of activity observed in many living organisms
the periodic passage of groups of animals (especially birds or fishes) from one region to another for feeding or breeding
decreasing responsiveness with repeated stimulation
the process by which certain animals form attachments during a critical period very early in life
(n) a clear; deep and sometimes sudden understanding of a complicated problem
Response to changes in the environment or internal conditions that are acquired during one's lifetime, as opposed to instinctive or automatic responses.