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.
Strength
strength is needed to become a more dominant species.
The epithelium tissue which permits gas exchange across the air sacs in the lungs are the simple squamos. It is a layer of flat cells that is in connected with the basal lamina. This part allows molecules that are small to pass by diffusion or filtration.
One is more active, the other is more passive
The bacteria in the colony would be genetically too similar.