2)During reproduction, a male can give either an X sperm or a Y sperm, while a female can only give an X egg. A Y sperm and an X egg produce a male, while an X sperm and an X egg produce a female.
3)Neurosecretory cells in the hypothalamus release oxytocin (OT) or ADH into the posterior lobe of the pituitary gland. These hormones are stored or released into the blood via the capillary plexus.
4) pancreas
5)adrenal glands
6)Endorphins
7)T4 and T3 help produce and regulate the hormones adrenaline and dopamine. Adrenaline is sometimes known as the fight-or-flight hormone. It is associated with a sudden burst of energy, such as that which occurs in response to a threat
