Marvin, who lives in San Francisco, has been asked to host a teenage alien, Regor, as part of an intergalactic exchange program. Marvin is sure that Regor would love to experience the adventure of sailing but decides he should introduce the concept of a "sailboat" first. Marvin suggests that Regor compare the features of an item that he thinks might be a sailboat with a checklist of sailboat features. If there are sufficient overlapping features, he might determine that it is a sailboat. This could be considered a .

Such illustration could be considered, a prototype.

Explanation:

The above illustration is considered to be a prototype because the prototype theory suggests an ideal way of presenting a small concept that can be used as a reference to the complete image of what is being represented with all the expected features and qualities.

Marvin's description of the sailboat to Regor is an example of the above illustration, reason being that Marvin would describe in details the color, height, width, the materials, etc of the sailboat to Regor through the prototype they have.

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the maintenance of fluid balance during exercise. author information: fluid supplementation is necessary for exercise in which fluid losses must be offset by intake to avoid the negative effects of hypohydration on health and performance.