Which of the following statements apply to freshwater fish? Select one : A. The concentration of solutes in their internal fluids is lower than surrounding water B. They lose water by osmosis. C. They pump out ions via the gills. D. They produce dilute urine.

answer: - b cells

explanation: -

so, the b cells mediate their action by identifying the antigens present on the surface of the pathogens and then producing antibodies in return to mediate its effect.

50% lit on the left side

if, i suppose that a bee stings me swinging my hand away from a bee. then that if, i persist patient when a bee or wasp areas on your surface to investigate a scent or to take h2o and i secreting heavily, the bug ultimately will move of its personal agreement. if i don't need to set for it to disappear, lightly and gently wipe it off with a part of the paper.