Which disease in adults is characterized by the following symptoms: $1.$ Low metabolic rate,$2.$ Increase in body weight,$3.$ Water retention in tissues?

Why is thyroxine considered a hormone and not an enzyme?

Which of the following are $NOT$ under the control of thyroid hormone?
$A$. Maintenance of water and electrolyte balance
$B$. Regulation of basal metabolic rate
$C$. Normal rhythm of sleep-wake cycle
$D$. Development of immune system
$E$. Support the process of RBCs formation
Choose the correct answer from the options given below:

If the thyroid gland is removed from a frog's tadpole,it will:

Symptoms like pot-bellied,pigeon-like chest,protruding tongue,and mental retardation are characteristic of:

$A$ pregnant lady delivers a baby who suffers from stunted growth,mental retardation,low intelligence quotient and abnormal skin. This is the result of $:-$