The building blocks of matter is atoms.
I hove no clue what this is, so mabey don't trust me, but I think D is the answer.
1. Overheating during fixation
2. Don't stain smears in which have been only air dried
3. The smears shouldn't be too thick
4. After staining, it's essential that the back of the surface slide is wiped clean
Hope this helped:)
~Nana!~
Answer:
The San Andreas Fault is the transform plate boundary where a thin sliver of western California, as part of the Pacific Plate, slides north-northwestward past the rest of North America
The answer is C. Chromsomes make up part of the DNA and carry the information needed to code for the DNA's proteins.