How many essential amino acids are needed in the body? 5 9 12 22

Which barrier to economic development is shown in the following examples? i. the high rate of hiv infection in underdeveloped nations ii. the use of children as soldiers in uganda’s army in the early 2000s iii. low literacy rates in underdeveloped nations with limited exposure to adequate education a. foreign debt b. political instability c. widespread disease d. low levels of social welfare

Which endocrine gland controls all other endocrine glands? a. pineal gland b. thymus gland c. pituitary gland d. thyroid gland

True or false only people who chew smokeless tobacco can get oral cancer