When a virus invades the body, some b cells recognize it as nonself and produce plasma cells that release a substance to kill the virus. what is this substance called?

When elements that form a mineral dissolve in hot water, they form a mixture called a(n) a)geode b)vein c)evaporation d)crystallization e)magma f)lava g)solution h)gem

In iceland, the mid atlantic ridge runs through the center of the contry. what can you conclude about the apperence of iceland many thousands of years from now?

What drives an advertising campaign?