Stimulus - Answers Any event or situation that evokes a response
Response - Answers An action or change in behavior that occurs as a result of a stimulus.
Innate Behavior - Answers Animal behavior that is developmentally fixed and under strong genetic
control
Migration - Answers seasonal movement of animals from one region to another.
Hibernation - Answers Long-term torpor that is an adaptation to winter cold and food scarcity.
Estivation - Answers prolonged torpor or dormancy of an animal during a hot or dry period.
Learned Behavior - Answers a behavior that has been learned from experience or observation
Imprinting - Answers The process by which certain animals form attachments during a critical period
very early in life.
Habituation - Answers An organism's decreasing response to a stimulus with repeated exposure to it
Trial and Error Learning - Answers Learning by trying alternative possibilities until the desired outcome is
achieved.
Classical Conditioning - Answers conditioning that pairs a neutral stimulus with a stimulus that evokes a
reflex
Courtship Behavior - Answers An instinctive behavior that males and females of a species carry out
before mating.
Communication - Answers An exchange of information that results in a change of behavior.
Behavior - Answers The way an organism reacts to changes in its internal condition or external
environment.
Instinct - Answers an innate, typically fixed pattern of behavior in animals in response to certain stimuli.
Altruism - Answers Behavior of an animal that benefits another at its own expense
Reflex - Answers A simple, automatic, inborn response to a sensory stimulus, such as the knee-jerk
response.
phloem - Answers Living vascular tissue that carries sugar and organic substances throughout a plant
xylem - Answers vascular tissue that carries water upward from the roots to every part of a plant
active immunity - Answers A form of acquired immunity in which the body produces its own antibodies
against disease-causing antigens.