B. when the immune system attacks the body's own cells
“Chromosomes carry genetic information in a molecule called DNA. A type of cell division called mitosis ensures that when a cell divides each new cell produced has the same genetic information. DNA exists in a cell's nucleus within structures called chromosomes .”
In the <span>cytokineses, one cell becomes two. </span>
The correct answer is polarity. Water's polarity<span> makes it an excellent solvent for salts, like sodium chloride, as well as other substances required by cells to carry out metabolic processes.Water is known as universal solvent as it dissolves most of the substances. This is because of it chemical composition, a water molecule has one electronegative oxygen atom and two hydrogen atoms as its constituents.</span>
Answer:
As ice melts into water kinetic energy is being added to the particles.This causes them to be "excited" and they break the bonds that hold them together as a solid resulting in a change of state:solid -> liquid.