Final answer:
The Mesosystem is the layer that connects different microsystems, such as family and school, within a person's social environment, facilitating interactions such as parent-teacher meetings.
Step-by-step explanation:
The layer that connects microsystems, such as parent-teacher conferences, parental help with homework, and a father being a Scoutmaster, is known as the Mesosystem. This layer provides the connections between the different microsystems of a person's life. For instance, a child's experience at school (one microsystem) can be greatly influenced by their parental involvement (another microsystem), and when these microsystems intersect through activities like parent-teacher conferences, this interaction is part of the mesosystem. These connections play a crucial role in how individuals are influenced by their surrounding social environment.