Notchochord, morphology, chordates
Explanation:
I think the answer is B . . . .
The answer is penicillin
Rheumatic fever is a disease that caused by Group A streptococcus infection. The bacteria has component that similar to the heart valve cells, makes the immune cell attack it. The drug of choice for this infection is penicillin G benzathine injection. It is one of penicillin family drug that has high prevalence of allergy reaction, so you must be aware.
The answer to this question is soften tooth enamel becuase your teeth fall out
Heat/melting and pressure.
