a) Pituitary gland is present in the brain, so it is associated with the brain.
b) The pancreas secretes digestive enzymes as well as hormones. That’s why it is called the endocrine as well as the endocrine gland.
c) Adrenal gland is present top of the kidneys. It is associated with kidneys.
d) The testis is present in males but not in females.