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What are the roles of mucus? Select two options.
A. to trap pathogens
B. to start fevers
C. to prevent pathogens from moving into deep tissues
D. to stimulate B-cells to make antibodies
E. to identify antigens
BTW, 16 points as long as you hurry!! :)

b c

Explanation:

it is to trap and make sure nothing harmful goes passed it to keep u safe.

in chemistry, a solution’s concentration is how much of a dissolvable substance, known as a solute, is mixed with another substance, called the solvent. the standard formula is c = m/v, where c is the concentration, m is the mass of the solute dissolved, and v is the total volume

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.