The internal environment
A) is in direct contact with the body's cells.
B) consists of the intracellular fluid.
C) must be maintained at absolutely unchanging composition, temperature, and volume for survival of the body.
D) is in direct contact with the body's cells and consists of the intracellular fluid.
E) all of these answers.

Question

Quizplus · Accepted Answer

The internal environment refers to the extracellular fluid that surrounds the body's cells, providing them with nutrients and removing waste. It is not the intracellular fluid, and while it must be regulated, it does not need to be absolutely unchanging.

The Internal Environment