According to the Centers for Disease Control and Prevention (CDC), approximately 7% of children and

adolescents ages 6 to 19 in the United States have a high total cholesterol. If 120,000 children and adolescents

in that age range were sampled, approximately how many of them would have a normal total cholesterol?

The diagram below shows the rough endoplasmic reticulum of a cell as seen under the electron microscope.

The structures labeled Z are the site of protein synthesis.

Z is indicating 

Reading Comprehension

Passage:

Regular exercise helps maintain bone density and muscle strength. Weight-bearing activities such as walking

and resistance training are especially important in preventing osteoporosis as people age.

Which activity mentioned in the passage helps prevent bone loss?

The table below shows the average daily requirements of essential amino acids in the diet at various stages of human life.

Which of these amino acids is required in the greatest amount in the diet of toddlers?