This is a regulation of the internal environment of an organism

Homeostasis

Explanation:

The internal stability or equilibrium of an organism is termed as Homeostasis. There are billions of cells within the human body that work at a time in co-ordination either as tissue or as an organ.  It is very essential for the constant internal environment with in a species. Regular adjustments are made at cellular, tissue and organ level to achieve stability.

explanation:

yes you are doing it right great gob

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.