Ornithorhynchus anatomy's which kingdom in which each organism belongs in?

I’m doing some practice exam questions for biology, and i’m not sure how to do these 3 parts to the question.

The tubes transporting minerals and water upward are called ?

Adehydrated patient has high water concentration in her urine and high adh concentration in her blood. which of the following is likely malfunctioning in the patient? a. pituitary gland b. urinary bladder c. kidney tubules d. circulatory system