The innermost layer of an artery wall is called the and lines the
of the blood vessel in order to decrease friction.

download the app called socratic on your phone

. ph changes the ability of them he enzyme to dissolve in water.

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.

d.embryo is the correct one