Answer:
heres the answer
Explanation:
true, false, true, false, false, true,
d, c, b, b, a, c, b
A. A statement of purpose
Answer:
Nicotine
Explanation:
Tobacco smoke contains numerous toxic chemicals including organic carcinogens such as polycyclic aromatic hydrocarbons and aromatic amines, inorganic carcinogens such as polonium 210, and arsenic and toxic alkaloids such as nicotine. Nicotine extracted from tobacco has also been used as an insecticide.
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The answer is; A
In the lymph vessels, a few lymphocytes ‘ patrol’ the tissues as they scan for antigens. When they detect an antigen, including surface antigens of rogue cells (cancer cells), the antigen-presenting cells (APCs) present this to the cognate lymphocytes turning them to effector cells (such as effector T-cells). The effector T- cells bind to the cancer cells and induce apoptosis.