I think the betta tank is fine, as long as the betta isn't included. Likewise, the frog and butterfly kits are fine as long as there is a certificate for the tadpoles and caterpillers, and not actual live animals. An empty habitat isn't living.
I think the the sea monkeys are okay too. They packed as dormant eggs, and can stay that way for months -- in the wild, they are desert animals that wake up only when it rains long enough to make large puddles. So, technically, they aren't living, and can easily be passed to someone who wants them. (Is this a bad time to point out that they make boring pets, but excellent aquarium fish food?)