Set A is the set of factors of 12, set B is the set of even natural numbers less than 13, set C is the set of add natural numbers less than 13, and set D is the set of even natural numbers less than 7. The universal set for these questions is the set of natural numbers less than 13. So, A = {1, 2, 3, 4, 6, 12}, B = {2, 4, 6, 8, 10, 12}, C = {1, 3, 5, 7, 9, 11}, D = {2, 4, 6}, and
U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}.
what is AnB

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.

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.

i think its both a and b

(nitrogen fixation) will be your answer sorry if im wrong