Iam in a tight spot and need some answers so ! i am making the question 60 points since it is a little harder than most. only answer if you seriously know the answers and answer more than just one. any foolish answers will be deleted and that will result in you loosing the points

Then answer is b for fact

the answer is:

carbon dioxide

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.