What happens to personal information stored digitally if it is accidentally deleted?
O A. It can always be recovered.
B. It becomes a computer virus.
C. It is backed up as analog storage.
O D. If the data is overwritten, it is gone.

a polymer is a chainlike molecule made up of small molecular units. these small molecular units are called monomers. monomers of polymer can be joined together either naturally or synthetically.  

d. planting trees

the trees take in carbon to make oxygen.

nb

explanation:

kj

hi my name is ashlynn and im 15

these macromolecules could either be amino acids, proteins or nucleic acids. they are responsible for the chemical changes and reactions that affects largely the cell and its composition. take for instance the cytoplasm of the cell where these organelles are settled. these simple organelles are composed of macromolecules which ignites and catalyses different functions that enables cells, in macro-perspective in motion and metabolism. in intestines for example, metabolism happens and breaking down parts of a food to simpler compounds that are used and these nutrients delivered throughout the body and again broken down by into smaller components.