HELP!! Q18: The diagram shows part of the digestive system.

What is a function of the liquid produced by part 1 and released into part 2?
A. to digest proteins to amino acids
B. to increase the surface area of fat droplets
C. to acidify the contents of part 2
D. to prevent further digestion of starch

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 believe it is c: genes for body color and wing size are inherited separately from each parent.

i believe your answer would be c.. : )