What is true of inter cellular signals that do not go through direct connections between cells such as plasmodesmata?
a. an ion linked channel to the nucleus opens up
b. a receptor molecule accepts the signal and transports it inside the cell
c. the signal fails to reach the inside and the cell does not respond
d. the signal is transferred to an adjacent cell for signal transmission
i will give brainliest answer to the correct answer with an explanation.

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.