Virgil 858 Views January 24, 2016, 06:37:47 PM Question Solved Share Tweet When asked the question "How many green blocks?" Alex the parrot used words to demonstrate that he understood both _________ and _________. Fill in the blank(s) with correct word Genny January 24, 2016, 06:40:02 PM #1 Answer numerosity; categories Willa January 24, 2016, 06:47:33 PM #2 You're the best!