What kind of frog? I think that a frog can go a few days without any major issues, normally. But, if this is a tree frog, then less than an inch is pretty young. He might not be eating because he's really stressed. Tree frogs shouldn't be shipped to pet stores until they are at least an inch long because the moving (into a container, then the shipping, into a new environment, then shipping to a new owner and yet another new environment) is just too stressful for them. If you think this is the case, then all you can do is add some really tiny crickets, make sure he has clean water and enough heat (if he's a red-eyed) then force yourself to leave him alone, so he can get relaxed and comfy.
No. Frogs would not survive without energy from the sun. A frog's food source depends upon the energy of the sun for its food. Without the sun, the frogs would not have food.
Frogs just get food and protect themselves
3 mins
A frog might be able to live without its tongue only for a short while. This is because a frog relies on its tongue to trap insects for food.
there cold blooded and cannot survive without water
it can survive in water
Whether or not a frog can survive being swallowed and then vomited by a cat depends on the situation. A very small frog may be able to survive this, if the cat didn't chew it, but cats typically bite their prey before swallowing, making it unlikely that a frog could survive.
Yes!
because the frog wants to get some food but the people won't give the frog some food.
Frog legs are a specialty food in France.
they camouflage
of course they can :)