....... plays a very important role in the regulation of a $24$ hours rhythm of our body.

Which of the following statements is incorrect with respect to the melatonin hormone?

Identify the correct gland on the basis of the following characteristics:
$(I)$ It is located on the dorsal side of the forebrain.
$(II)$ It plays a very important role in the regulation of the $24$-hour rhythm of our body.
$(III)$ It helps in maintaining body temperature.
$(IV)$ Its hormone influences metabolism as well as defense capability.

Melatonin is secreted by the . . . . . . .

The hormone $Melatonin$ is produced by the:

Where is the pineal gland located?