Final answer:
The symptom of zinc deficiency from the provided options is poor wound healing. Zinc is critical for many physiological functions and its deficiency can lead to symptoms including loss of appetite, poor growth, weight loss, and issues with skin, hair, and vision.
Step-by-step explanation:
The symptom of zinc deficiency from the options provided is poor wound healing. Zinc is essential for many biological functions including immune response, growth, and wound healing. A zinc-deficient diet can lead to a variety of symptoms such as loss of appetite, poor growth, and weight loss. Additionally, skin problems, hair loss, and vision problems can occur.
The sense of taste or smell may also diminish, contrary to increased sensitivity. It is important to differentiate between various deficiency diseases, such as megaloblastic anemia, which is typically caused by a deficiency in vitamin B12 or folate, and conditions like scurvy, which results from a deficiency in vitamin C, impacting collagen formation and wound healing.