A bova is a clam. A dax is a cockroach. Question: Which one of them is made of muscles? Answer: bova.
A wug is a centipede. A kiki is a sparrow. Question: Which one of them can sing? Answer: kiki.
A toma is an owl. A glorp is a zebra. Question: Which one of them has good eyesight? Answer: toma.
A blick is a bat. A tufa is a hummingbird. Question: Which one of them makes a humming sound? Answer: tufa.
A fep is a camel. A flib is a penguin. Question: Which one of them produces wool? Answer: fep.
A zek is a monkey. A zup is a butterfly. Question: Which one of them can collect nectar? Answer: zup.