If these are meant for human consumption, they're called "snacks", if they're for one of the pets, they're called "treats". Your quiz is to identify which are for babies and which are for animals. Bonus points if you can identify which animal gets which treat.
It's semi-interesting to note that the intended eaters of these snacks/treats don't care at all about the shapes. The shapes are solely for the amusement of the treat/snack dispensers, not the eaters. This might not be the case for kiddie cereals, a source of lots and lots of food shaped like stuff, but, alas, we currently only have very boring flaky type cereals in the house.