Ans.
Homeostasis can be defined as the state of constant, steady internal conditions maintained by living organisms. One way to maintain homeostasis by animals is by eliminating waste products from the cells.
By doing this, cells excrete harmful toxins to outside through its cell membrane. Cell organelles that help in digestion of waste material in cells are lysosomes.
Thus, the correct answer is option). 'by eliminating waste through the cell membrane.'
