UnScramble this Word: r s o n u u a?

Questions

There are about _______ species of coral known?

The Mola Mola, or Ocean Sunfish, lays up to _______ eggs at one time?

Researchers don't know why killer whales like to rub their sensitive stomachs on the bottom of shallow beaches, but they think it may be a form of?

There are about 500 different kinds of cone snails around the world. All have a sharp, modified tooth that stabs prey with venom like a harpoon. Most cone snails hunt worms and other snails, but some eat fish. These are the ones most dangerous to people. The nerve toxin that stops a fish is powerful enough to also kill a?

The crocodile is surprisingly fast on land. If pursued by a crocodile, a person should run in a ______ motion, for the crocodile has little or no ability to make sudden changes of direction?