Question

Some frog species only have one leg.

Answer 1

I belive this is false but im not sure. You should add more info. I cant tell what you are asking me. 

Answer 2

Answer:

This statement is false because all species of frogs are characterized by the presence of 4 legs. Most frog species have a metamorphic life cycle in which it goes from tadpole to frog. There are some species that pass from egg to frog directly but also have 4 limbs. All frogs belong to the group of tetrapods.

Tetrapods are animals that have 2 pairs of limbs