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What is Life? A Guide to Biology: Chapter 9
Terms in this set (35)
Behaviors that come to a cost to the individual performing them while benefiting a recipient
Actions performed by an organisms in response to its environment or the actions of something else
An action or signal of one organism that alters the behavior of another organism. There are four types.
An individual's total reproductive output
In sexually reproducing organisms, a member of the sex that produces the larger gamete
Fixed action pattern
An innate sequence of behaviors, triggered under certain conditions, that requires no learning, does not vary, and once begun returns to completion; an example is egg-retrieval in geese
Group selection describes the evolution of a trait that is beneficial for the species or population while decreasing the fitness of the individual exhibiting the trait and because it decreases reproductive success it rarely occurs.
A signal that cannot be faked and that is given to indicate information about oneself
= direct fitness + indirect fitness
The reproductive output brought about by altruistic behaviors toward close kin
A behavior that is influenced by genes and does not depend on learning
Behaviors that do not require environmental input for their development. Instincts are present in all individuals in a population and do not vary much from one individual to another or over an individual's life span; also known as innate behavior
Preferential helping of genetic relatives, which results in the greater likelihood that genes held in common will survive.
A type of communication in which arbitrary symbols represent concepts and grammar and a system of rules dictates who the symbols can be manipulated to communicate and express ideas.
The alteration and modification of behavior over time in response to experience.
In sexually reproducing organisms, a member of the sex that produces the smaller gamete
behavior by an individual that reduces the oppurtunity for that individuals mate to interact with other potential mates (spider breaking off penis)
The pattern of mating behavior in a species, ranging from polyandry to monogamy to polygyny; mating systems are influenced by the relative amounts of parental investment by males and females
A mating pattern in which one male and one female form an enduring reproductive partnership
A food item or other item presented to a potential mate as part of courtship
A stable relationship between animals of opposite sex that ensures cooperative behavior in mating and rearing the young.
A male cannot be completely sure that an offspring is his
Pheromone (Chemical Communication)
Chemical signals released by an animal that communicate information and affect the behavior of other animals of the same species.
A polygamous mating system involving one female and many males.
Any mating system in which a member of one sex mates with several members of the opposite sex
a polygamous mating system involving one male and many females
Behaviors that are learned easily by individuals in a species
Behavior that benefits another with the expectation that those benefits will be returned in the future
Energy and material expended by an individual in the growth, feeding, and care of offspring
Sexes of a species differ in size or appearance
An external signal that triggers the innate behavior called a fixed action pattern
Total reproductive output
The lifetime number of offspring produced by and individual
Behavior of scout honeybees that indicates, by the angle of the body relative to the sun and by physical maneuvers of various duration, the direction to a distant source of food
Sounds that trigger behavioral responses
Organisms can convey information such as threat or receptivity with visual displays
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