Isotonic solution.
Since it has the same salt concentration as the cell the solution is neither hypotonic or hypertonic.
The answer is D. Hope this helps!
49; Number of Electrons = Number of Protons = Atomic Number
Answer: the cell membrane helps to maintain homeostasis levels
Homeostasis in an organism or colony of single celled organisms is regulated by secreted proteins and small molecules often functioning as signals. Homeostasis in the cell is maintained by regulation and by the exchange of materials and energy with its surroundings.
Explanation:
