Which has more mass, a 2-kg fluffy pillow or a 3-kg small piece of iron ?more volume?what are you answer different ? help me please

As a result of these processes the single celled organism accomplishes

Molecules like glucose and amino acids are not lipid soluble, so cannot cross the cell membrane by simple diffusion. instead, they are shuttled across by carrier proteins in the membrane from high to low concentration. does this process require energy from the cell? this is an example of what type of molecular movement?

Which organelle will regrow during telophase?