Answer:
Primary lymphoid organs: These organs include the bone marrow and the thymus. They create special immune system cells called lymphocytes. Secondary lymphoid organs: These organs include the lymph nodes, the spleen, the tonsils and certain tissue in various mucous membrane layers in the body (for instance in the bowel)
Explanation:
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Ozone is the pollutant that forms when automobile emissions react with oxygen gas and ultraviolet light.
A scientific law would be your answer.
There are many laws that are defined using formulas.
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Facial expressions, body movement and posture, gestures, eye contact, touch, space, and voice.
The answer is B. Meiosis involves two cycle of cell division.
