Identify a structure, in organisms that do not have kidneys, that is adapted to regulate water balance.

Malphigian tubules - specialized structures in insects and spiders that absorb water and ions then pass it to the gut.
Antennal glands - found in crustaceans like crabs and shrimps. Functions in reabsorption of substances, secretion and removal through urine.

If these are the missing choices: a. to determine skin temperature, place the back of your hand against the patient's skin.b. determine body temperature by touching the patient's hands and feet.c. skin temperature will tell you very little about this patient's condition or well-being.d. the patient's skin temperature and color will likely be warm and red.my answer is: a. to determine skin temperature, place the back of your hand against the patient's skin. using the back of the hand to check for temperature rather than the palm is more effective because the back of the hand has more nerves that can feel and transmit the temperature than the palm.