Extreme height differences can be attributed to the secretion or deficiency of hormones, particularly growth hormone. In cases where there is a deficiency of growth hormone, it can result in dwarfism, while an excess can lead to excessive growth and ...

Growth hormone, secreted by the pituitary gland, regulates the growth and development of the body. A deficiency of this hormone in childhood leads to dwarfism, where individuals are much shorter than average.

A deficiency of iodine in the diet can lead to goitre, a condition where the thyroid gland enlarges, resulting in a swollen neck. This condition is related to the role of iodine in the synthesis of thyroxin hormone.

Iodised salt is essential for our diet because iodine is necessary for the thyroid gland to produce thyroxin hormone. Thyroxin regulates carbohydrate, protein, and fat metabolism in the body, ensuring a balanced environment for growth.

Animal hormones play essential roles in maintaining homeostasis by regulating metabolism, growth, reproduction, and responses to environmental stimuli. They ensure that the body functions harmoniously, adapting to internal and external changes while maintaining the overall integrity of the organism.