Which of the following genetic variations would most likely lead to an outcome that is successful for that organism?

a an individual that is unable to reproduce.
b an organism that has shorter than average legs and runs slower than the herd.
c an animal that lives in the arctic and has dark colored fur.
d a creature that lives in the ocean has a long back fin to propel it through the water.

D

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.