According to the collision theory, when can a chemical reaction occur? a. when enough activation energy is added to correct the orientation of the particle collisions
b. when reactants collide with energy to intersect their valence shells and form new bonds
c. when reactants collide with enough mass to form new bonds and break apart the reactants
d. when the proper catalyst is added to break the chemical bonds in the reactants

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.

i think that it is c, d, and e, hope this