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Immunology › ViewWhich of the following is true about B-1 cells?
A. produce IgM antibodies which are polyspecific
B. express CD5
C. their antibodies could be responsible for autoimmune diseases
D. considered part of the first line of defense against systemic viral/bacterial infections
E. all of the above
Life Processes › View
Transpiration is
A. the movement of water through a plant from the roots up the stem
B. the loss of water from the leaves of a plant by the process of evaporation
C. the flow of water into plant roots by osmosis from the soil
D. the process of minerals and sugars moving through plant veins