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