D. There are only a week Hydrophobic interactions in the interior of the membrane.
Plant cells have a cell wall that adds an additional layer of protection from the external environment.
The scientist who refuses to consider new evidence, assuming he or she is not biased or incompetent could do it because if there is a big amount of evidence indicating otherwise, this one new piece of evidence is unlikely and they prefer to wait for more evidence or for analysis of whether this current evidence is not false.
thus this scientist is being skeptical (practicing skepticism) by ignoring this new evidence.
Answer:
In immunology, an antigen is a molecule or molecular structure, such as may be present on the outside of a pathogen, that can be bound by an antigen-specific antibody or B-cell antigen receptor. The presence of antigens in the body normally triggers an immune response.
