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?

Review the image below.

If each division in the ocular micrometer below equals 25 micrometers, what is the length of the oval?  

Which fraction is equal to 0.04? 

Which structure works to prevent reflux of gastric contents by contracting and relaxing? 

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?