Which way of moving molecules across a membrane requires energy?
a. meiosis
b. diffusion
c. osmosis
d. active transport

It’s b. mass i searched it up

True, the standard unit for volume is liters which can be represented by either a lower case "l" or a capital "l"

All the elements are arranged by melting points on the periodic table. in row they go from metals to gasses. in the row from sodium to argon, sodium is more reactive than the one on its right, magnesium.