1. the theory that chance is involved in evolution and that variation within a species is accidental. 2. the belief that chance rather than mere determinism operates in the cosmos. Cf. uniformitarianism. 1. Philosophy. a doctrine that the universe is governed only by rigid, unexceptionable law.
Share this set. an organism that produces its own nutrients from inorganic substances or from the environment instead of consuming other organisms. Autotroph. an organism that produces its own nutrients from inorganic substances or from the environment instead of consuming other organisms.
  No.   A Spirochete is an organism from a phylum of bacteria (Spirochaetes) and is generally spiral in shape.   An autotroph is an organism that produces its own fo â¦ od (generally by photosynthesis). The opposite of an autotroph is called a heterotroph.   Spirochetes, like other bacteria, are heterotrophs.