A specie must adapt to its environment in order for it to live longer
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[She] had kindled the callow fancy of the most idle and shiftless of all
the village lads, and had conceived for this Howard Carpenter one of
those absurd and extravagant passions which a handsome country boy of
twenty one sometimes inspires in a plain, angular, spectacled woman of
thirty. (Willa Cather, "A Wagner Matinee")
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Well both because if its for advanced supplies then 2010 but if its about the enviroment then 1980 :)
I would say that knit and gnome are similar in that both words have a silent letter/sound: in knit, you don't read the K sound in the beginning, and in gnome, you don't read the G sound in the beginning. Other than that, I don't really see many similarities between those two words.
When it comes to differences, the obvious one is the meaning - they don't mean the same thing. Also, knit is a verb, whereas gnome is a noun. They are also spelled differently, because they are different words, and so on.