Cells found in the skin that take up foreign antigen and migrate to the lymph nodes is called

Dendritic cells

Explanation:

Dendritic cells are the antigen-presenting cells which bind to the antigen and present them to the adaptive immune cells called B and T lymphocytes.  The dendritic cells are the cells which are considered the innate immune cells and they connect the innate immune response to the adaptive immune response.

The dendritic cells are present in the skin, the alimentary canals and the mucus which binds the antigen and under the guidance of the cytokines are migrated to the secondary lymphoid organs like the spleen and the lymph nodes where they present them to the lymphocytes.

Thus, the dendritic cell is correct.

just go with your heart buddy

the sugar-phosphate backbone forms the structural framework of nucleic acids, including dna and rna. this backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.