During development embryonic cells will fuse to form muscle fibers. this will result in a. interlocking of cells that can prevent the filaments from sliding b. the coordination of nerve signals to muscle fibers c. the striations that appear in skeletal and cardiac muscle tissues d. multinucleated muscle fibers that can extend as long as 30 centimeters

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.