Aboxer is competing in a match. which describes the roles of endocrine and neural controls as he boxes?
the nervous system transmits pain, while the endocrine system elicits the fight or flight response.
the endocrine system transmits pain, while the nervous system elicits the fight or flight response.
the nervous system controls hand-eye coordination, while the endocrine system controls punching strength
the nervous system controls aggression levels, while the endocrine system controls reflexes.

c.) polymerase chain reaction

- "unlike the original dna fingerprinting method, dna profiling does not use restriction enzymes to cut the dna. instead it uses the polymerase chain reaction (pcr)? to produce many copies of specific str sequences. pcr is an automated procedure that generates lots of copies of a specific sequence of dna."

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.