Epithelial cells form the skin and inner lining for organs.

This equation means "some number, decreased by 3, is equal to 7." b-3 = 7 To arrive at a true statement for />, we want to eliminate - 3 on the left side of the equation. We do this by adding 3 to both sides of the equation, undoing the subtraction on the left side. When we add 3 to both sides, we are keeping the statement an equation.
(B-3) + 3 = 7 + 3
By simplifying both sides, we isolate b and thus find the solution.
B=10

The temperature of the atmosphere fells during the nighttime hours because the side of the earth not facing the sun loses heat by radiation.

The symbol for inductance isL.The symbol for an inductor is a loop as in a coil of wire.

Spiders are arachnids, part of a large class of arthropods having four pairs of walking legs and no wings, unlikeinsects(which have three pairs of walking legs and a pair of wings) andannelids(which are a type of segmented worm with no jointed legs).Marsupialsare a type of nonplacental mammal whose young are bom very underdeveloped and then continue developing outside their mother's body attached to one of her nipples, usually in a pouch; examples are kangaroos, koalas, and possums.