I guess it is aluminium in cationic form
Foreign invaders have proteins called antigen, which antibodies lock onto to neutralize. The foreign proteins are different from proteins in our own body, so the immune system can recognize them and finally eliminate them.
Answer:
I don’t understand...
Explanation:
You didn’t ask a question ummm
The correct answer is B. Prokaryotes do not have a nucleus, while eukaryotes do.