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Answer:

T- cells are extremely important.

Explanation: These special types of cells attack infected cells, and others can even activate B-cells. Healthy people have multitudinous of these cells.

Answer:

T-Cells help the immune system and are also a special kind of white blood cell

Explanation:

T-cells use marker molecules known as antigens which are found on pathogens to help B-cells know where to produce antibodies