According to the second law of thermodynamics what happens to the energy we consume as food ?

Part of energy is stored as ATP and rest is lost as "unusable form", that is, metabolic heat.

Explanation:

According to the second law of thermodynamics, none of the energy transformation processes is 100% efficient and part of the energy is always converted into unusable form to increase the entropy of the system or surroundings. Ingestion and digestion of food into simpler elements followed by the use of these simpler nutrients for energy production stores part of energy into ATP. However, part of the energy of nutrients is converted into metabolic heat. The metabolic heat is an unusable form of energy.

tsd is temerature dependent sex determination.

tsd: it is a type of environmental sex determination in which the temperature experienced during embryonic/ larval development (ambient temperature for development) determine the sex of the offspring.

crocodile displays the tsd where the ambient temperature of the developing egg determines the individual's sex. for example in the american alligator's eggs, incubation at 33 ºc produces mostly males, while incubation at 30 ºc produces mostly females. so if the american alligator's egg will get the ambient temperature (33 degree celcius)during embryonic development from egg, the offspring will be male and same for the female sex determination.