A person unable to make the antimicrobial peptide histatin would be more susceptible to infection by .

children tend to take more after their grandparents more than their parents. it’s the dna you received that was passed down to you somewhere in your family. maybe one of your grandparents had/has straight hair and you might have gotten it from them.

i believe it would cause an increase of percipitation, though i could be wrong. so i would say b is the answer.

the solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. this process is called passive transport or facilitated diffusion, and does not require energy.