Indentify each stage on the diagram with the name of the stage? PLEASE HELP

1.black dwarf

H.white dwarf

A.Red giant

B.Main sequence

C.Nebula

D.Stellar nursey

Explanation:

On the last part where the main sequence happens, it really depends on the mass of the star using the sun as an example, our sun has a low mass meaning when it close to its dying form it would go to Planetary Nebula then collaspe as a white dwarf. When a massive star goes through the main sequence and it reaches its dying form, with the high mass it'll also die as a white drawf when it has very high mass it'll possibly end up as a black hole.

Hope this helps, sorry if it doesn't!

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.