Which of the following is $NOT$ a symptom of hypothyroidism in a growing child?

When the thyroid secretion is too much,the gland itself gets enlarged; conversely,if the secretion is too little,the gland gets

$A$ pregnant woman delivers a child who suffers from stunted growth,mental retardation,low intelligence quotient $(IQ)$,and abnormal skin. This condition is likely due to:

Which substance should be added to water to accelerate the process of metamorphosis in tadpoles?

What is Isthmus?

Hypothyroidism in adults causes .....