Answer:
I think it's A) A protein substrate
I don’t know the first two but the last one the thousands of subunits are called nucleotides
Answer:
A.? i'm not 100% sure tho
Explanation:
Anaphylaxis is a severe, potentially life-threatening allergic reaction. It can occur within seconds or minutes of exposure to something you're allergic to, such as peanuts or bee stings.
