Fight-or-flight reactions cause activation of
the parathyroid glands, leading to increased metabolic rate
the kidney leading to suppression of reninangiotensin-aldosterone pathway
the adenal medulla, leading to increased secretion of epinephrine and norepinephrene.
the pancrease leading to a reduction in the blood sugar levels.
$A:$ Hormones are non- nutrient chemicals.
$B:$ It act as intercellular messengers and are produced in large amount
Melanocyte stimulating hormone in frog is released by
How many Islets of Langerhans are present in normal human pancreas?