One survives and the other does not

That is my answer to the exam question

Tortoiawa is a misspelling of tortoise

Tortoises cannot escape their shells

As it is attached to their rib cage and spine

Tortoises are ectothermic

Seashells are not ectothermic

It is not uncommon to find seashells

In souvenir shops in coastal towns

Tortoises are never found in souvenir shops

I am a vegetarian

Tortoises are vegetarian

There is no evidence to suggest

That seashells are vegetarian