What is a community of living things together with their environment called? a. retrosystem b. ecosystem c. exosphere d. biosphere

a and c are the answeres

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.

i think this picture will you.