What do the D and T in ADP and ATP mean?

Are you talking about a chemical compound?

because if you are then T in ATP would be triphosphate.

Meanwhile D is Diphosphate.

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.

i'm guessing this is from edg enuity so the answers would be, from top to bottom,

theodor schwann

matthias schleiden

robert hooke

rudolph virchow

anton van leeuwenhoek