Physiology Within the endocrine system, specificity of communication is determined by A The chemical nature of the hormone B The distance between the endocrine cell and its target cell(s) C The presence of specific receptors on target cells D Anatomical connections between the endocrine and target cells 💡 Explanation Within the endocrine system, specificity of communication is determined by ✓ Correct Answer: C. The presence of specific receptors on target cells