ANATOMY

Detailed explanation-1: -Therefore, the hormone responsible for developing the immune system in the human body is thymosin.

Detailed explanation-2: -Hormones are are the body’s chemical messengers, sending signals into the bloodstream and tissues. Hormones work slowly, over time, and affect many different processes, including growth and development, metabolism – how your body gets energy from the foods you eat-sexual function, reproduction, and mood.

Detailed explanation-3: -Abstract. Immune cells (lymphocytes, monocytes and macrophages, granulocytes and mast cells) produce numerous hormones, store and secrete them. In addition these cells have receptors for hormones and signal transduction pathways.

Detailed explanation-4: -So, the correct answer is ‘Induces formation of RBCs’.