What term describes a flow from start to finish without any branches?

The term that describes a flow from start to finish without any branches is sequence. In programming and algorithms, a sequence represents a straightforward, linear progression where one instruction follows another in an unbroken line. This means that each step is executed in order without diverging into various paths, ensuring that the process is clear and easy to follow.

For example, in a simple program that adds two numbers and displays the result, each step will occur one after another without any decision-making or looping involved. Sequences are foundational in constructing algorithms because they help establish a clear order of operations.

While selections can introduce branches based on conditions, and iterations or loops involve repeating a set of instructions, these concepts do not fit the characteristics described in the question. A sequence is simply about a straight, uninterrupted flow of operations.