What's the difference between heterogenesis and xenogenesis?
Heterogenesis
Definition:
(n.) Spontaneous generation, so called.
(n.) That method of reproduction in which the successive generations differ from each other, the parent organism producing offspring different in habit and structure from itself, the original form, however, reappearing after one or more generations; -- opposed to homogenesis, or gamogenesis.
Example Sentences:
Xenogenesis
Definition:
(n.) Same as Heterogenesis.
(n.) The fancied production of an organism of one kind by an organism of another.