As the body breaks down large molecules into smaller molecules that the cells can absorb, it is exposed to bacteria and viruses on a regular basis.
Which two body systems are interacting to keep you safe from invading
organisms and chemicals?

F. digestive and endocrine

G. endocrine and reproductive

H immune and digestive

J. respiratory and muscular

option c is the correct answer.

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.

the sun creates it's own light, also gives light and life to bunch of stuff like plants,animals,humans etc.photosyntesis is the process of making food which needs sun,water,nutrients etc.