The nucleus of a eukaryotic cell<span> directs the </span>cell's<span> activities and stores DNA. ... They contain enzymes that digest the </span>cell's<span> used </span>parts<span>. All of the </span>cell's organelles<span> must </span>work together to keep the cell<span> healthy. hope that helped</span>
A= (99x1+0,8x2+0,2x3)÷100%=1,012
1,012≈1
The answer is D
3.21 x 10^24 atoms / 6.02 x 10^23 atoms = 5.33 moles