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saltationism

[sal-tey-shuh-niz-uhm]

sal·ta·tion·ism

[sal-tey-shuh-niz-uhm]
noun Biology.
any of several theories holding that the evolution of species proceeds in major steps by the abrupt transformation of an ancestral species into a descendant species of a different type, rather than by the gradual accumulation of small changes.

Origin:
1970–75; saltation + -ism

sal·ta·tion·ist, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
Cite This Source Link To saltationism

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Saltationism is always a great word to know.
So is zygote. Does it mean:
the close external resemblance of an organism to some different organism, such that it benefits from mistaken identity, as seeming to be unpalatable
the cell produced by the union of two gametes before it undergoes cleavage or cell division
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