The cell membrane is the lipid bilayer surrounding the entire cell.The nuclear membrane, on the other hand,surrounds the nucleus. On the contrary, the nuclear membrane is not a continuous sheet but is made of a series of vesicles that come together to enclose the nucleus.
Teens, athletes and pregnant women need the most calories per day.
Teens need more because they're still growing.
Athletes need extra calories to burn during their exercise.
Pregnant women because they need to feed the baby and themselves.
(Don't know how to explain)
Hope this helps, mark brainliest please!
