Reptiles are a class of tetrapod vertebrates that produce amniotic eggs, and crocodiles, snakes, and lizards are all types of reptiles. Given these facts, what is an example of a tetrapod vertebrate among the following options:
- genus
 - Leeuwenhoek
 - a fish
 - crocodile
 - animals
 - four limbs
 - warm-blooded
 - graptolites


 

    crocodile     