3. Explain the role of the Cardiovascular and Respiratory systems have on one’s muscular endurance abilities.(2 points)

Which of the following identifies the main culprit for america’s increasing weight gain?

What can friends provide to affect mental health positively? a)peer pressureb)challengesc)conflictd)companionship

0% 10. use the table to answer the question. which elements would you expect to find mainly in the earth’s core? element density (g/cm3) aluminum 2.7 iron 7.87 nickel 8.9 silicon 2.33 iron and silicon aluminum and silicon aluminum and nickel iron and nickel