The correct answer I think is D. The nucleus
HEMOCYTOBLAST
hope it will help you☺
<span>A collection of mechanisms, behaviors and physiological processes that prevent the members of two different species that cross or mate from producing offspring, or which ensure that any offspring that may be produced are sterile :)</span>
I think the EAR is 7.79%
Since EAR = e^0.75 -1
= 7.79%