If your frog is an immature female, you will find 2 grayish or pinkish ovaries in either side of the abdominal cavity. the testes of the male are in the corresponding positions. attached to these organs are yellow fat bodies. what is the function of fat bodies?

The fat bodies in a male frog is where its energy is stored.  They would need stored energy for hibernation period. Aside from that, they would need stored energy for mating and metamorphosis cycle.

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the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.