If a nursing mother is not producing enough milk, her hormonal system is probably deficient in? By: Sunday|Published on: Sep 10|Categories: Biology JAMB| 0 comments A. prolactin B. testosterone C. thyroxin D. insulin Correct Answer: Option A – prolactin Users Also Read These:Micro-nutrients are likely to be deficient in?Crops grown in nitrogen deficient soil show the…Which of the following hormonal glands is located on…A dairy farmer allowed only his best milk-producing…When a plant shows reddish leaves; the soil is deficient in?SEE ALSO In a typical freshwater habitat, the edge of the stream or pond constitutes the?