Which is an example of how exercise enhances health and well-being? a. creates hormonal balance b. increases cortisol levels c. increases dopamine levels d. decreases endorphin levels

What is the main causes of gray hairs and balding? write your answer in 2 paragraphs

Which example is a indication of stress a. becoming more alert b. narrowing air passages c. slowing down if the heartbeat d. decreasing blood sugar with adrenaline

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