How do you find the mass number of an atom

Study this image. which statements best describe the rock shown? check all that apply. the grains of this rock are jagged. this rock has several coarse grains. the grains in this rock are very large. this rock has a non-banded pattern. the color of this rock is determined by its texture.

How do diseases caused by bacteria and diseases caused by viruses react to antibiotics?

Ineed some everybody. the production of cells during mitosis into specialized function is called: recombination or differentiation