Question

current attempt in progress
igor has been having a difficult time regulating his body temperature, thirst, and hunger. because of his symptoms, his physician ordered some diagnostic testing. an mri has just revealed that igor has a brain tumor. based on his symptoms, igor’s tumor is likely interfering with the activity of his
auditory cortex.
amygdala.
substantia nigra.
hypothalamus.

Explanation:

The hypothalamus regulates body - temperature, thirst, and hunger. The other brain regions listed do not have these regulatory functions. The auditory cortex is related to hearing, the amygdala to emotions like fear, and the substantia nigra to movement control.

Answer:

hypothalamus.