Hi!
I would say C, weak, dead, or partial antigens because do you need to be introduced to the disease for your body to fight it.
Hope this helps!
C is the correct answer to me
The effects<span> of </span>tobacco smoke<span> on the </span>respiratory system<span> include: irritation of the trachea (windpipe) and larynx (voice box) reduced lung function and breathlessness due to swelling and narrowing of the lung airways and excess mucus in the lung passages.</span>
Answer: 95% of the earth crust
Explanation:Igneous rock make up about 95% of the earth crust. Igneous rocks are formed from solidified molten magma within the earth crust(intrusive) or outside the earth surface (extrusive).
Answer:
DNA mRNA Amino Acids Polypeptide chains Proteins
Explanation: