You are presented with the question "The first tetrapods were" and the following answer choices: 
- major threat to health
 - remains of prehistoric life
 - in the frog family
 - running and lifting
 - competing for resources
 - warm-blooded
 - objects that have mass
 - graptolites

Now knowing that amphibians are the first true tetrapods, or vertebrates with four limbs and all frogs are amphibians, choose the best answer.


 

   in the frog family      