Yes, ONTOGENIES is a Scrabble word!

Letter values in Scrabble US: O 1, N 1, T 1, O 1, G 2, E 1, N 1, I 1, E 1, S 1.

Is it a valid word?

ONTOGENIES is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

(biology) the process of an individual organism growing organically; a purely biological unfolding of events involved in an organism changing gradually from a simple to a more complex level