Will give brainliest, a THX, a friend request, and will rate ur answer Please answer me fast as possible,
THX

Done!

Explanation:

There is not a problem with the model. The atoms are tightly compacted to get, so if you were to cut it in half the split would also be smooth and straight. For example, a grain of salt is rough on the outside, but when you cut it in half the split is smooth. It is the same with the atoms in the model.

label a cell membrane

label b cytoplasm

label c ribosomes

label d dna

the membrane forms the outside of the cell

cytoplasm is the liquid within

ribosomes are the components within that distribute rna

the dna is the genetic make-up

during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.