Answer:
Passice immunity
Explanation:
Breast milk, produced by female mammals (including humans), besides being rich in fat and protein is full of IgA. IgA is the immunoglobulin (immune system signal proteins) that is present in body secretions, such as milk.
The baby that is fed from the mother's breast ingests these defense proteins that allow it to tolerate different pathogens and toxins.
It is considered passive immunity, as it does not generate memory and depends on a continuous dose to maintain defense levels.
A.
Explanation: Because he learned it in previous years when it was different, now it becomes hard to learn the new information.
Answer:
because not every virus or disease has the same DNA or RNA
Scientific Disciplines:
Biochemistry and Molecular Biology.
Cancer Biology.
Cell Biology.
Chemistry:
Developmental Biology and Genetics.
Immunology.
Microbiology.
Neuroscience.
