1. Multiple Choice: Which hormone is primarily responsible for the regulation of growth and metabolism? A) Thyroxine B) Insulin C) Growth hormone D) Estrogen Correct Answer: C) Growth hormone Rationale: Growth hormone, produced by the pituitary gland, plays a crucial role in stimulating growth and cell reproduction and regeneration. 2. True/False: The cephalocaudal trend of development states that growth starts at the head and moves towards the feet. Answer: True Rationale: The cephalocaudal trend describes the direction of growth, which begins at the head and upper body parts and then proceeds down to the rest of the body. 3. Fill-in-the-Blank: The process by which a child develops the ability to think, learn, reason, and remember is known as ___________ development. Correct Answer: Cognitive