Answer:
MHC Markers
Explanation:
The function of MHC molecules is to display peptide fragments derived from pathogens on the cell surface for recognition by the appropriate T cells.
Nails start in the nail root, hidden under the cuticle. When cells at the root of the nail grow, the new nail cells push out the old nail cells. These old cells flatten and harden, thanks to keratin, a protein made by these cells. The newly fromed nail then slides along the nail bed, the flat surface under your nails.
1) C
A population has to be isolated for speciation
2) D
Different species are incapable of reproducing with one another
3) D
When a population is contained, the recessive alleles can become dominant within the population
I think it's the the colon ??