The following question refers to the figure.
In this eight-year experiment, 12 populations of E. coli, each begun from a single cell, were grown in low-glucose conditions for 20,000 generations. Each culture was introduced to fresh growth medium every 24 hours. Occasionally, samples were removed from the populations, and their fitness in low-glucose conditions was tested against that of members sampled from the ancestral (common ancestor) E. coli population.
Which term best describes what has occurred among the experimental populations of cells over this eight-year period?
Definitions:
Relationships
The connections, associations, or interactions between individuals or groups.
Inborn Predisposition
Natural tendencies or inclinations present at birth that influence behavior, preferences, or susceptibilities.
Instinct
An innate, typically fixed pattern of behavior in animals in response to certain stimuli that is unlearned and often serves survival purposes.
Affiliation Motive
describes the psychological need to build relationships, feel connected, and interact with others, often driving social behavior and group membership.
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