Meat and other types of tough food
The right answer is A.
Metabolic homeostasis is provided by a set of interactions between the central nervous system (CNS) and peripheral tissues. The CNS controls the periphery by regulating the fraction of energy that enters the body (caloric intake) and that which emerges from it.
To perform this role, the CNS receives signals from peripheral organs and provides information on peripheral metabolism, as well as the extent of the reserves available to the body.
The answer should be 1, hypertonic.
Seawater is highly concentrated in salt, and with that being said, it has a low concentration of water molecules.
Hypertonic means the solution has a lower water concentration than the other side (cell), vice versa for hypotonic, a high water concentration than the other side of the solution, and for isotonic, it means that both sides of the solution have the same water concentration.
So, the answer should be 1, hypertonic.
In addition, when your cells are exposed to hypertonic solution, the water molecules in your cells will start flowing out of the cells, to the outside, due to the difference in water concentration leading to osmosis. Your cells will lose so much water that they may even shrink!
The correct answer is A. Recording the sounds of a test tube breaking
Any cells of the human body, except the cells of a placenta.
