Thyroxine and calcitocin help in increased rate of cellular metabolism and decreased blood calcium, respectively are released from

Answer: Option B

Thyroxine and calcitocin help in an increased rate of cellular metabolism and decreased blood calcium, respectively are released from Thyroid.
The thyroid gland produces three hormones: Triiodothyronine, also known as T3. Tetraiodothyronine, also called thyroxine or T4. Calcitonin.
Calcitonin is a hormone that your thyroid gland makes and releases to help regulate calcium levels in your blood by decreasing it.
Calcitonin opposes the actions of the parathyroid hormone, which is a hormone that increases your blood calcium levels.