<span>According to Mendel's law, the effects of our environment are not passed on to the next generation
(In classic Mendelian inheritance, environmental effects are not passed on to the next generation)</span>
The answer to this question is "Dendritic Cells". In addition to m cells, the "Dendritic cells" in the epithelium can capture pathogens directly from the lumen of the gut without disturbing other cells and processes in the epithelium of the epithelial layer.
I don't have an answer, but your doing this in college, when I need this in my 6th grade earth science? dang lol