every cell has work to do but different cells may have different jobs in multicellular organisms, cell with the same type of job often work together. These group of specialized cell from tissue in turn, tissue often group together to form larger units called organs the heart is an organ; so is the stomach.
It would be c. It can bond with other atoms through ionic and covenant bonds.<span />
B. Global warming accelerates the greenhouse effect
To substances that are bonded together but can be taken apart
