What would a single meerkat living in the Sahara desert be called

Explanation:

While the rest of the mob forages for food, one or more meerkats, called a sentry, will find a high point, like a termite mound, and perch on their back legs, scanning the sky and desert for predators like eagles, hawks, and jackals.

the sea slugs belong to the same class

the answer is b.) hydrogen bonds between bases.