The lining of the heart is the pericardium.
The structure that serves as the cell's boundaries from its environment is known as the CELL MEMBRANE. It keeps the bad things from coming in, and releases waste out into the environment.
<span>Answer: cell membrane</span>
The anwser is chloroplast, could you check your sheet to see if you typod anything.
50 is 16 times greater than 34
Both have phosphate-pentose back bone, as well as both have adenine, cytosine and guanine bases.