Question

question 39 (2 points)
listen
the kidneys regulate body water and salt balance
as part of their contributions to homeostasis
all of these are true
by controlling how much of each is excreted
flexibly, in accord with bodily needs
by controlling how much of each is retained in the body

Explanation:

The kidneys play a crucial role in maintaining homeostasis by regulating body water and salt balance. They do this by controlling the amount of water and salt excreted and retained according to the body's needs.

Answer:

all of these are true