If foreign substances pass the body's first line of defense and into the bloodstream, what happens? they are attacked by saliva or mucous. they are attacked by lymphocytes. the body has no other defense.

They are attacked by lymphocytes.

all soils contain mineral particles, organic matter, water and air the combinations determine the soil's properties – its texture, structure, porosity, chemistry and color. soil is made up of different-sized particles. sand particles tend to be the biggest.

delegated (sometimes called enumerated or expressed) powers are specifically granted to the federal government in article i, section 8 of the constitution. this includes the power to coin money, to regulate commerce, to declare war, to raise and maintain armed forces, and to establish a post office.