C. A higher amount of addictive chemicals are needed to get the same high when fewer receptors are present...
"It will die of old age" is the one outcome among the choices given in the question that will be the <span>most likely outcome for a cell that is not allowed to divide. The correct option among all the options that are given in the question is the fourth option or option "D". I hope that the answer has helped you.</span>
I'd say D but i'm not 100% sure
The mechanisms of reproductive isolation prevent the reproduction of two individuals from different species. The prezygotic mechanisms disrupt the stages of reproduction before the forming of the zygote or prevent the mating at the start, and the postzygotic mechanisms affect the stages of reproduction after the forming of the zygote.
So, the first and the third example (the urchins and the grasshoppers) show the prezygotic mechanism, as the two individuals are not able to mate or form a zygote.
The second and the fourth example ( zonkey and the death of a zygote) show the working of the postzygotic mechanisms, as the zygote is formed, but it seems to be inviable, and the zonkeys are sterile, preventing the individual to reproduce.
