Check out the best UK music festivals using our music festival calendar, or stay right here in the city with our big list of London music festivals. You can win festival tickets on our competitions page and discover the best new bands on this summerâs festival circuit.
Develop advanced reasoning and inquiry skills as you design experiments, collect and analyze data using mathematics and other methods, and interpret that data to draw conclusions. AP Biology Course Overview (PDF) AP Biology Course & Exam Description (PDF)
Antigen-presenting cell. Antigen-presenting cells (APC) are cells that can process a protein antigen, break it into peptides, and present it in conjunction with class II MHC molecules on the cell surface where it may interact with appropriate T cell receptors. From: Immunology Guidebook, 2004. Related terms: Antibodies; CD4; Macrophages; MHC class II; T cells; CD8