AP BIOLOGY

Detailed explanation-1: -Traditionally, T cells were CD4+ helper or CD8+ cytotoxic T cells, and with antibodies, they were the soldiers of immunity. Now, many functionally distinct subsets of activated CD4+ and CD8+ T cells have been described, each with distinct cytokine and transcription factor expression.

Detailed explanation-2: -T cells are like the soldiers-they destroy the invaders that the intelligence system finds.

Detailed explanation-3: -T cells are a part of the immune system that focuses on specific foreign particles. Rather than generically attack any antigens, T cells circulate until they encounter their specific antigen. As such, T cells play a critical part in immunity to foreign substances.

Detailed explanation-4: -White blood cells are called soldiers of the body, becauseThe white blood cells provide immunity to our body. They help in fighting against diseases, infections, allergies and foreign particles.

Detailed explanation-5: -Immune cells, also called leukocytes or white blood cells, are cells within immune organs that actively fight infections and other diseases.