Fiber plays important roles in maintaining the health of which system?
a. digestive system
b. endocrine system
c. lymphatic system
d. muscular system

What are the proteins in connectivity tissues of your foot examples of?

The table below shows the elements that mainly comprise each of the four layers of earth: elements in layers layer main elements crust oxygen, silicon mantle iron, magnesium outer core iron, nickel inner core iron which of these elements make up the layer that is 0.2 to 1.1 percent of earth's total diameter?

What are the characteristics of carbon bonds? check all that apply.