In the production of ATP in photosynthesis, energy from electron flow is used to transport from the to the thylakoid compartment, generating a concentration gradient of .

Explanation:

ATP is produced in the process of photosynthesis occurs in plants and many other organisms. Electron are transported  by electron transport chain and there is the generation of concentration gradient of H+.

This gradient causes the activation of ATPase pump which causes the production of ATP by using this gradient.

In the production of ATP in photosynthesis, energy from electron flow is used to transport H+ from the stroma to the thylakoid compartment, generating a concentration gradient of H+.

equal distribution i think.

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.