Sometimes a statement resembling a law that is not accepted and perhaps rejected, and sometimes not general enough to be a law because it refers to single objects [e.g., Johannes Kepler (1571-1630) and his laws of planetary motion around the sun, which do not mention suns and planets in general]. Statements made about the nature of ontogenetic development tend to be of this nature.
See Explanation, Law, Laws of nature, Ontogenetic development