Is Hand Span Discrete or Continuous?

For any species, a characteristic that changes gradually over a range of values shows continuous variation. Examples of such characteristics are: weight. hand span.

Is hand span continuous or discontinuous?

Which are examples of discontinuous variation? Discontinuous: Eye colour, handedness & lobed/lobeless ears. Continuous: Hand span, arm length & height.

What are examples of discrete variation?

Discrete variation is either/or and is often caused by the presence or absence of a small number if genes. For example, our ability to "roll" our tongues is determined by just one gene. We can all either roll our tongue or not - there's nothing in between.