Tiny finger shaped structures in the small intestine that absorb large amounts of nutrients are called
a.

villi
b.

pancreas
c.

liver
d.

gallbladder

Convection currents are caused by differences in what two things?

Astep up transformer has 250 turns on its primary and 500 turns on it secondary. when the primary is connected to a 200 v and the secondary is connected to a floodlight that draws 5a, what is the power output? show all of your work.

If you let go of the notebook after lifting it, will it move? how?