Answer:
In science, a variable is any item, factor, or condition that can be controlled or changed
<span>Nucleus is the central organelle of the cell which encloses the DNA. Apart from the nucleus, there are few other organelles which have their own DNA.Mitochondria,power house of the cell has its own DNA.so the selected cell possess is mitochondria and chloroplasts.</span>
Answer:
Callendar is to trace the effect of possible combination of molecules of solute with molecules of the solvent.
