Organisms can be made up of many , which could be arranged into , which can make up , organs can be part of an . These are ___ .

cells, multicellular organisms,not sure

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.