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You only kill off the ones that are reactive to host antigens (read: the ones that would attack your own cells!). So normal lymphocytic function isn't affected.

Because of the nature of the immune ...

The cells composing the potato tissue contain fluid, or cytoplasm. This contains dissolved salts and these ions attract water molecules; cations, or positive ions, attract the partially negatively charged...

Mitosis is a form of cell division in which one cell (mother cell) divides into 2 genetically identical cells (daughter cells). Within the human body, mitosis replaces worn-out cells with new cells. Mitos...

Homeostasis is the maintenance of a constant internal environment in organisms despite external changes. Homeostasis ensures that cells within an environment are able to meet their needs and function appr...

A niche is the functional area within which an organism exists. This can be a specific habitat it inhabits, how it shelters itself, a food source it can exploit and can include all abiotic or biotic inter...