Rodrigo needs his sister Alisa to help him make a model of human heart for the upcoming science exhibition in his school. However, he is not sure if she will oblige. So, he initially urges Alisa to accompany him to the arts and crafts supply store to buy materials for the model. A day later, when she appears interested in the project, Rodrigo asks Alisa if she would help him complete the model. Alisa readily agrees to this proposal. In the context of persuasion, this scenario exemplifies .

Foot-In-The-Door Phenomenon.

Explanation:

Based on the scenario being described within the question it can be said that this scenario best exemplifies the Foot-In-The-Door Phenomenon. This phenomenon refers to the tendency in which an individual complies with a certain large request after agreeing to a smaller request. Which is what happened in this scenario since Alisa ultimately agreed to help Rodrigo with his exhibit after getting interested in it, which only happened because she agreed to go help him buy materials at the store.

the period of human evolution has coincided with environmental change, including ('hominin' refers to any bipedal species closely related to humans – that is, on how do we know earth's climate has changed? a map showing dates and locations of prehistoric archeological sites and migration routes from africa into.