On Almost periodicity and minimality for semiflows

In topological dynamics, the dynamical behavior sometimes has a sharp contrast when the action is by semigroups or monoids to when the action is by groups. In this article we bring out this contrast while discussing the equivalence of almost periodicity and minimality, and some implications when every point is an almost periodic point.
Comment: This is the final version incorporating all the comments and suggestions by a very generous, anonymous reviewer which has enhanced the write-up of this article