Answer:
The supporting sentences do not flow logically.
Step-by-step explanation:
Essays have elements which are essential to provide coherence and structure, such as: an introduction with its thesis statement, body paragraphs with topic and supporting sentences, and a conclusion that unifies it all.
A paragraph can have a unifying structure, as much as an essay, but if the supporting sentences of do not flow logically, are not connected with the examples and arguments or to the thesis statement in the essay's introductory paragraph, it demonstrates the paragraph is not coherent and well-structured.