1. In his experiments on Streptococcus pneumoniae, Griffith found that
a. harmless R bacteria changed and
became virulent.
b. the S bacteria were transformed.
c. the capsule did not protect the bacterium.
d. mice injected with the R bacteria died.

b.

the atomic number of magnesium is 12. its nucleus must contain 12 protons and no electrons. the atomic number of an atom is determined by the number of protons.

magnesium is an electrolyte injection commonly used to treat low magnesium levels in your blood. it is also used to prevent or control seizures in women with preeclampsia or eclampsia.

the answer is d. none of the above