because it is a amphibian
a tadpole is the second stage before it grows into a frog.
they can both go in water and they both eat bugs.
Amphibian. It can live in both water and on land. the species for leopard frog is (rana chiricaheunsis)
Yes, because a frog lives both on land, and in water. So they are the same thing, but a "land frog" is probably just a frog that you catch roaming the land.
A frog certainly can trap air in their throat. This is a necessary skill that the frog has developed as a creature that lives both in and out of water.
they live on both land and water but mostly water very rarely land
The frog head is important because the nares/nostrils are located at the tip of the head. Without being able to breathe, the frog could not go under water.
It depends on what species of frog it is. Tree frogs are rather small whereas bullfrogs are larger.
there cold blooded and cannot survive without water
Both: The Water-holding Frog has an estivation cycle and the California red-legged frog may estivate when food and water supply is low. Whereas frogs from temperate climates hibernate through the winter.
it can live both on land and in water
In most species, the nostrils are placed on top of the head, so a frog is able to breathe while it's body is almost completely submerged under water. That way enemies cannot detect the frog easily.