Question

characteristics of life
heather brown
characteristics of life
multiple-choice question
which of the following is not an example of a homeostasis?
enzyme require a specific ph to work properly.
humans must maintain a body temperature of 98.6f to ensure that chemical reactions can occur.
single celled organisms that live in water have contractile vacuoles that constantly pump water out of the cell to ensure the correct water concentration in the cell.
cells must remain the same size.

Explanation:

Homeostasis is the ability of an organism to maintain a stable internal environment. Enzymes requiring a specific pH (which is maintained by the body), humans maintaining a body temperature of 98.6°F (a stable internal temperature), and single - celled organisms using contractile vacuoles to maintain water concentration (a stable internal water balance) are all examples of homeostasis. Cells do not need to remain the same size as part of homeostasis. Cell size can change depending on the cell's function (e.g., muscle cells can expand and contract, and some cells grow during the cell cycle before dividing).

Answer:

Cells must remain the same size.