Cellular membranes contain a bilayer of phospholipids. Compare between the polar and nonpolar regions of a phospholipid

a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring.

fkk you n*gga

radon is correct hope this

protein makes up the building blocks of organs, muscles, skin, hormones and pretty much everything that matters in your body.

some choices are:

peanut butter

seeds

eggs

yogurt

meats

fish

so pretty much meat, dairy, nuts, and grains.