<span>Primary endocrine disorders may be due to damage to the hormone producing organ. Karen’s thyroid gland suffered damage from repeated exposure to radiation because of a neck injury. The option which is least likely to be part of a primary endocrine disorder for Karen is decreased osteoblast sensitivity to calcitronin. </span>
Answer:
There was no oxygen in the flask.
Explanation:
Anaerobic organism do not need oxygen!!
I believe its D. response neuron.
Hope this helps!
Love, Grace-