D. Avoid being with others who smoke
Hope this helps :)
My best guess would be D. many studies have linked cardiorespiratory exercise to the lowering of blood pressure. (Many studies have also linked going vegan to the lowering of blood pressure, too :)
Answer: Spleen
List of the organs in the immune system:
Lymphoid
Thymus
Lymph nodes
Slpeen
Lymphatic
Answer:
the external appearance of a plant community, which changes throughout the year in accordance with the succession of the phases of development of plants. As a rule, aspect is repeated year in and year out in almost identical sequence.
